{"title":"Filbur Pool \u0026 Spa Filters For Sonoma Spas","description":"\u003cp\u003eFilbur pool and spa filters are renowned for their high-quality construction and efficient filtration capabilities, making them a popular choice for maintaining crystal-clear water in aquatic systems. Filbur filters are designed to capture a wide range of contaminants, including dirt, debris, and fine particles, using advanced filtration media such as pleated polyester or fabric elements. These filters are known for their durability and ease of maintenance, offering features like reinforced end caps and robust filter cores to enhance longevity and performance.\u003c\/p\u003e\n\u003cp\u003eIf you are having difficulty finding the correct replacement filter for your hot tub or pool, please try our \u003ca title=\"Bath \u0026amp; Spa Parts Online Filter Finder\" href=\"\/pages\/filters\"\u003e\u003cstrong\u003eFILTER FINDER\u003c\/strong\u003e\u003c\/a\u003e. You can locate your filter by hot tub brand, the current filter number, by size or by Pleatco, Unicel, Aladdin, or Excel part numbers.\u003c\/p\u003e","products":[{"product_id":"fc-0312","title":"Filbur FC-0312 6CH-352  Spa\/Pool Filter Cartridge","description":"\u003cp\u003eFilbur FC-0312 6CH-352  Spa\/Pool Filter Cartridge is a replacement spa and pool filter cartridge from Filbur Manufacturing, built for systems that use this specific Filbur cartridge style. The listed cross-reference details include 6CH-352, which can help match the cartridge to the filter currently in service. It is intended to help restore steady filtration by trapping debris, body oils, and suspended particles as water moves through the filter housing. When an old cartridge becomes worn, stained, collapsed, or difficult to clean, replacing it can help improve circulation and support cleaner, clearer water.\u003c\/p\u003e\u003cp\u003eThis cartridge is a practical maintenance item for spas, hot tubs, and pool applications where the correct size and end-cap style are required. Always compare the part number, cartridge length, outside diameter, inside diameter, and end configuration with the filter being replaced. Regular rinsing and periodic replacement help reduce strain on the pump, maintain water flow, and keep the sanitizer working more efficiently.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplacement Filbur Manufacturing spa\/pool filter cartridge for compatible filtration systems\u003c\/li\u003e\n\u003cli\u003eUse part number and cross-reference markings to verify fit before ordering\u003c\/li\u003e\n\u003cli\u003eHelps capture dirt, debris, oils, and fine particles during normal circulation\u003c\/li\u003e\n\u003cli\u003eSupports improved water clarity and more consistent filter performance\u003c\/li\u003e\n\u003cli\u003eIdeal for routine maintenance when the existing cartridge is worn or hard to clean\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243583184,"sku":"FC-0312","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/FC-0312.jpg?v=1603120762"},{"product_id":"fc-1220","title":"Filbur FC-1220 C-4325 PA225-4 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eFilbur FC-1220 C-4325 PA225-4 Spa\/Pool Filter Cartridge is a replacement spa and pool filter cartridge from Filbur Manufacturing, built for systems that use this specific Filbur cartridge style. The listed cross-reference details include C-4325 PA225-4, which can help match the cartridge to the filter currently in service. It is intended to help restore steady filtration by trapping debris, body oils, and suspended particles as water moves through the filter housing. When an old cartridge becomes worn, stained, collapsed, or difficult to clean, replacing it can help improve circulation and support cleaner, clearer water.\u003c\/p\u003e\u003cp\u003eThis cartridge is a practical maintenance item for spas, hot tubs, and pool applications where the correct size and end-cap style are required. Always compare the part number, cartridge length, outside diameter, inside diameter, and end configuration with the filter being replaced. Regular rinsing and periodic replacement help reduce strain on the pump, maintain water flow, and keep the sanitizer working more efficiently.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplacement Filbur Manufacturing spa\/pool filter cartridge for compatible filtration systems\u003c\/li\u003e\n\u003cli\u003eUse part number and cross-reference markings to verify fit before ordering\u003c\/li\u003e\n\u003cli\u003eHelps capture dirt, debris, oils, and fine particles during normal circulation\u003c\/li\u003e\n\u003cli\u003eSupports improved water clarity and more consistent filter performance\u003c\/li\u003e\n\u003cli\u003eIdeal for routine maintenance when the existing cartridge is worn or hard to clean\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243643280,"sku":"FC-1220","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/c4325.jpg?v=1486185355"},{"product_id":"fc-1230","title":"Filbur FC-1230 C-7626 PA25 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eA spa and pool filter cartridge helps trap suspended debris inside a compatible filtration system, and this Filbur FC-1230 cartridge is designed for C-7626 and PA25 applications. When the original cartridge becomes worn, loaded, or less effective, the system can lose the dependable support it should provide.\u003c\/p\u003e\u003cp\u003eThe FC-1230, C-7626, and PA25 compatibility give this part practical value because cartridge replacements work best when they match the intended filter housing and service application closely. A properly selected cartridge helps restore intended filtration performance and contributes to cleaner routine maintenance.\u003c\/p\u003e\u003cp\u003eThis type of part is especially useful when the main filter assembly remains serviceable and the issue is centered on the cartridge element. That keeps service direct and efficient.\u003c\/p\u003e\u003cp\u003eInstalled in the proper setup, this filter cartridge helps restore dependable debris capture and contributes to cleaner overall water-care performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilter cartridge for compatible C-7626 and PA25 spa and pool applications\u003c\/li\u003e\n\u003cli\u003eHelps restore dependable filtration performance\u003c\/li\u003e\n\u003cli\u003eUseful when original cartridges are loaded or worn\u003c\/li\u003e\n\u003cli\u003eSupports cleaner routine maintenance\u003c\/li\u003e\n\u003cli\u003eImproves service confidence and water-care quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243646736,"sku":"FC-1230","price":35.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/17-175-1310_xl.jpg?v=1486185362"},{"product_id":"fc-2397","title":"Filbur FC-2397 C-4999 PRB100 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eFilbur FC-2397 C-4999 PRB100 Spa\/Pool Filter Cartridge is a replacement spa and pool filter cartridge from Filbur Manufacturing, made for systems that require a clean, properly matched cartridge to maintain water clarity and steady circulation. It also references common cartridge cross numbers such as FC-2397, C-4999, PRB100 for easier comparison against the part being replaced. This cartridge is intended for use when the existing filter is worn, damaged, difficult to clean, or no longer supporting normal water flow through the spa or pool equipment.\u003c\/p\u003e\u003cp\u003eWhen selecting a replacement cartridge, always compare the part number, length, outside diameter, inside opening, end-cap style, and any printed cross-reference numbers on the old filter before ordering. A correctly matched cartridge helps reduce strain on the pump, supports better filtration performance, and keeps routine maintenance more predictable.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplacement filter cartridge for compatible spa and pool filter systems\u003c\/li\u003e\n\u003cli\u003eFilbur Manufacturing model for easier identification and reordering\u003c\/li\u003e\n\u003cli\u003eHelps trap debris and support clean, clear circulating water\u003c\/li\u003e\n\u003cli\u003eUseful when replacing a worn, clogged, cracked, or hard-to-clean cartridge\u003c\/li\u003e\n\u003cli\u003eCompare all dimensions and end-cap details with the original cartridge before purchase\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243793104,"sku":"FC-2397","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/c4999.jpg?v=1486185515"},{"product_id":"fc-3096","title":"Filbur FC-3096 C-5402 PDO25-4 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eThe Filbur FC-3096 C-5402 PDO25-4 Spa\/Pool Filter Cartridge is a replacement spa and pool filter cartridge from Filbur Manufacturing, selected for customers who need a clean, dependable cartridge for routine water filtration service. It is listed with the reference identifiers C-5402 PDO25-4 to help match existing cartridges, filter labels, and cross-reference notes during replacement. This cartridge is a practical replacement option when the current filter is worn, stained, crushed, or no longer rinses clean after normal maintenance.\u003c\/p\u003e\u003cp\u003eUse this cartridge as part of a regular filter maintenance schedule to support better water clarity, improved debris capture, and more consistent flow through the filtration system. Before ordering, compare the part number, length, outside diameter, inside diameter or opening size, end-cap style, and any printed cross-reference numbers on your existing cartridge. Proper fit is important for sealing, circulation, and overall filtration performance.\u003c\/p\u003e\u003cp\u003eThis item is best suited for pool and spa owners, service technicians, and maintenance teams replacing an existing cartridge with a matching Filbur model. Always clean the filter area before installation, seat the cartridge fully, and follow the equipment manufacturer's maintenance guidance for rinse intervals, chemical balance, and replacement timing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilbur replacement filter cartridge FC-3096 for compatible spa and pool filter applications\u003c\/li\u003e\n\u003cli\u003eHelps trap debris and support clear water when installed in the correct filter housing\u003c\/li\u003e\n\u003cli\u003eUseful for routine maintenance, seasonal replacement, or restoring filtration after a worn cartridge\u003c\/li\u003e\n\u003cli\u003eCompare all dimensions, end-cap style, and cross-reference numbers before ordering\u003c\/li\u003e\n\u003cli\u003eDesigned for easy cartridge replacement during normal pool or spa service\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243882384,"sku":"FC-3096","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/c5402.jpg?v=1486185619"},{"product_id":"fc-3097","title":"Filbur FC-3097 C-5404 PDO40-4 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eThe Filbur FC-3097 C-5404 PDO40-4 Spa\/Pool Filter Cartridge is a replacement spa and pool filter cartridge from Filbur Manufacturing, selected for customers who need a clean, dependable cartridge for routine water filtration service. It is listed with the reference identifiers C-5404 PDO40-4 to help match existing cartridges, filter labels, and cross-reference notes during replacement. This cartridge is a practical replacement option when the current filter is worn, stained, crushed, or no longer rinses clean after normal maintenance.\u003c\/p\u003e\u003cp\u003eUse this cartridge as part of a regular filter maintenance schedule to support better water clarity, improved debris capture, and more consistent flow through the filtration system. Before ordering, compare the part number, length, outside diameter, inside diameter or opening size, end-cap style, and any printed cross-reference numbers on your existing cartridge. Proper fit is important for sealing, circulation, and overall filtration performance.\u003c\/p\u003e\u003cp\u003eThis item is best suited for pool and spa owners, service technicians, and maintenance teams replacing an existing cartridge with a matching Filbur model. Always clean the filter area before installation, seat the cartridge fully, and follow the equipment manufacturer's maintenance guidance for rinse intervals, chemical balance, and replacement timing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilbur replacement filter cartridge FC-3097 for compatible spa and pool filter applications\u003c\/li\u003e\n\u003cli\u003eHelps trap debris and support clear water when installed in the correct filter housing\u003c\/li\u003e\n\u003cli\u003eUseful for routine maintenance, seasonal replacement, or restoring filtration after a worn cartridge\u003c\/li\u003e\n\u003cli\u003eCompare all dimensions, end-cap style, and cross-reference numbers before ordering\u003c\/li\u003e\n\u003cli\u003eDesigned for easy cartridge replacement during normal pool or spa service\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":28243882448,"sku":"FC-3097","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/products\/c5404.jpg?v=1486185620"},{"product_id":"pa25","title":"Pleatco PA25 C-7425\/C-7626 FC-0615 FC-1230 Filter Cartridge","description":"\u003cp\u003ePleatco PA25 C-7425\/C-7626 FC-0615 FC-1230 Filter Cartridge is a replacement spa or pool filter cartridge from Pleatco Filters designed to help restore clean water flow through compatible filtration systems. It is suited for maintenance replacements where the cartridge model, cross-reference number, length, diameter, end-cap style, and core design need to match the existing filter.  Match the item carefully against the existing part, plumbing size, equipment model, and service diagram before installation. A fresh cartridge can improve circulation, reduce strain on the pump, and help keep water clearer when paired with proper cleaning and chemistry.\u003c\/p\u003e\u003cp\u003eBefore ordering, compare all printed cartridge codes and physical dimensions to the filter being replaced. Many cartridges look similar, but small differences in end caps, thread style, opening size, or overall length can affect fit. Replace worn, collapsed, cracked, or heavily soiled cartridges promptly to maintain efficient filtration.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine or listed Pleatco Filters replacement option for Filters applications\u003c\/li\u003e\n\u003cli\u003eCompare cartridge length, diameter, end caps, core, and cross-reference numbers before ordering\u003c\/li\u003e\n\u003cli\u003eUseful for repair, rebuild, routine maintenance, or replacement service\u003c\/li\u003e\n\u003cli\u003eCompare size, voltage, color, connection type, and model details before ordering\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended whenever electrical, gas, pressure, or code-sensitive work is involved\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pleatco Filters","offers":[{"title":"Default Title","offer_id":45006321057947,"sku":"PA25","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/17-775-1310_XL.jpg?v=1717046818"},{"product_id":"70251","title":"Darlly 70251 FC-1230 C-7626 PA25 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eA filter cartridge helps support cleaner water movement through the system by capturing suspended debris during circulation, and this Darlly cartridge is designed for compatible applications referencing FC-1230, C-7626, and PA25. When the cartridge media begins to lose effectiveness, the filtration system can feel less dependable than it should.\u003c\/p\u003e\n\u003cp\u003eThe grouped reference numbers give this cartridge practical value because filter replacements work best when matched directly to recognized application identifiers. A properly selected replacement helps restore intended filtration support and contributes to a cleaner, more reliable maintenance cycle.\u003c\/p\u003e\n\u003cp\u003eThis type of part is especially useful when the filter canister remains serviceable and the main maintenance need is renewing the cartridge itself. That keeps service focused and straightforward.\u003c\/p\u003e\n\u003cp\u003eInstalled in the proper setup, this filter cartridge helps restore dependable water filtration and contributes to cleaner system performance overall.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter cartridge for compatible applications using FC-1230, C-7626, and PA25 references\u003c\/li\u003e\n\u003cli\u003eHelps restore dependable debris capture during filtration\u003c\/li\u003e\n\u003cli\u003eUseful when original cartridges are worn or spent\u003c\/li\u003e\n\u003cli\u003eSupports cleaner maintenance and circulation\u003c\/li\u003e\n\u003cli\u003eImproves filtration confidence and service quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Darlly Filtration","offers":[{"title":"Default Title","offer_id":45082204668059,"sku":"70251","price":38.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/17-777-1310_XL.jpg?v=1718158749"},{"product_id":"60406","title":"Darlly 60406 FC-0312 PAS40-F2M Spa\/Pool Spa\/Pool Filter Cartridge","description":"\u003cp\u003eA spa or pool filter cartridge helps keep circulating water cleaner by collecting suspended debris within the filter system, and this Darlly cartridge is designed for compatible applications using the PAS40-F2M reference. When the original cartridge reaches the end of its useful life, the system can lose the filtration support it should provide.\u003c\/p\u003e\n\u003cp\u003eThe spa-and-pool application gives this cartridge practical value because some filter designs serve more than one type of water system while still requiring a precise replacement fit. A properly selected replacement helps restore intended debris-capture performance and contributes to more dependable maintenance planning.\u003c\/p\u003e\n\u003cp\u003eThis type of part is especially useful when the housing remains serviceable and the primary need is simply fresh filter media. That keeps service simple and efficient.\u003c\/p\u003e\n\u003cp\u003eInstalled in the proper setup, this filter cartridge helps restore dependable system filtration and contributes to cleaner water performance overall.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter cartridge for compatible spa and pool applications using the PAS40-F2M reference\u003c\/li\u003e\n\u003cli\u003eHelps restore dependable filtration performance\u003c\/li\u003e\n\u003cli\u003eUseful when original cartridges are worn or spent\u003c\/li\u003e\n\u003cli\u003eSupports cleaner maintenance and circulation\u003c\/li\u003e\n\u003cli\u003eImproves water-care confidence and service quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Darlly Filtration","offers":[{"title":"Default Title","offer_id":45082205487259,"sku":"60406","price":38.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/17-777-2530_XL.jpg?v=1718158781"},{"product_id":"70759","title":"Darlly 70759 FC-3059 C-7367 PDO75-2000 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eA filter cartridge helps the system maintain cleaner circulating water by trapping suspended debris within the filter housing, and this Darlly cartridge is designed for compatible applications referencing FC-3059, C-7367, and PDO75-2000. When the cartridge media becomes restricted or unreliable, the filtration system can lose the dependable performance it should provide.\u003c\/p\u003e\n\u003cp\u003eThe multiple cross-reference identifiers give this cartridge practical value because replacement filters are most accurately selected by matching recognized application numbers to the original cartridge family. A properly selected replacement helps restore intended filtration support and contributes to a cleaner service routine.\u003c\/p\u003e\n\u003cp\u003eThis type of replacement is especially useful when the filter body remains serviceable and the service need is centered on the cartridge media itself. That keeps maintenance focused and efficient.\u003c\/p\u003e\n\u003cp\u003eInstalled in the proper setup, this filter cartridge helps restore dependable debris capture and contributes to cleaner water care overall.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter cartridge for compatible applications using FC-3059, C-7367, and PDO75-2000 references\u003c\/li\u003e\n\u003cli\u003eHelps restore dependable system filtration\u003c\/li\u003e\n\u003cli\u003eUseful when original cartridges are clogged or worn\u003c\/li\u003e\n\u003cli\u003eSupports cleaner maintenance and circulation\u003c\/li\u003e\n\u003cli\u003eImproves filtration confidence and service quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Darlly Filtration","offers":[{"title":"Default Title","offer_id":45082207256731,"sku":"70759","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/17-777-1811_XL.jpg?v=1718158849"},{"product_id":"41002","title":"Darlly 41002 FC-2397 C-4999 PRB100 Spa\/Pool Filter Cartridge","description":"\u003cp\u003eA filter cartridge helps maintain effective debris removal during everyday water circulation, and this Darlly cartridge is designed for compatible applications referencing FC-2397, C-4999, and PRB100. When an older cartridge reaches the end of its working life, filtration support can begin to fade below the level the system should provide.\u003c\/p\u003e\n\u003cp\u003eThe multiple application references give this cartridge practical value because filter matching is most dependable when tied directly to known cross-reference identifiers. A properly selected replacement helps restore intended filtration performance and contributes to a more predictable maintenance routine.\u003c\/p\u003e\n\u003cp\u003eThis type of replacement is especially useful when the filter housing remains serviceable and the cartridge itself is the main service item. That keeps upkeep focused and easy to manage.\u003c\/p\u003e\n\u003cp\u003eInstalled in the proper setup, this filter cartridge helps restore dependable system filtration and contributes to cleaner water care overall.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter cartridge for compatible applications using FC-2397, C-4999, and PRB100 references\u003c\/li\u003e\n\u003cli\u003eHelps restore dependable debris capture during filtration\u003c\/li\u003e\n\u003cli\u003eUseful when original cartridges are worn or spent\u003c\/li\u003e\n\u003cli\u003eSupports cleaner maintenance routines\u003c\/li\u003e\n\u003cli\u003eImproves filtration confidence and service quality\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Darlly Filtration","offers":[{"title":"Default Title","offer_id":45082207781019,"sku":"41002","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/17-777-1605_XL.jpg?v=1718158869"}],"url":"https:\/\/www.bathandspaparts.com\/collections\/filbur-filters-for-sonoma-spas.oembed","provider":"Bath and Spa Parts Online","version":"1.0","type":"link"}