FILTER FINDER

Search by any filter part number, spa or pool manufacturer, filter system, model number, or cross-reference number. You only need to search once—the finder checks every available reference field.

Find Your Filter

Enter any part number, manufacturer, system or model

Hyphens and spaces are ignored only while matching. Official manufacturer part-number formatting remains unchanged in every result.

Example:

Search Results

Enter a part number, manufacturer, system or model above. If you do not find the right filter, use the measurement finder below.

Filter cartridge measurement diagram showing outside diameter, length, top and bottom dimensions, and end cap styles

Measurement tolerance: The finder allows approximately ±1/8 inch for diameters and openings and ±1/4 inch for overall length.

Outside Diameter (in.)

Length (in.)

Top Opening / Dimension (in.)

Bottom Opening / Dimension (in.)

Top Style

Bottom Style

View Full End Cap Guide

Browse by Manufacturer

Manufacturer collections remain available for customers who prefer browsing.

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Replacement Cartridges by Outside Diameter

2" Outside Diameter Cartridges 3" Outside Diameter Cartridges 4" Outside Diameter Cartridges 5" Outside Diameter Cartridges 6" Outside Diameter Cartridges 7" Outside Diameter Cartridges 8" Outside Diameter Cartridges 9" Outside Diameter Cartridges 10"+ Outside Diameter Cartridges

Filter Equipment & Parts

CFR Filters & Parts DE Filters & Parts Sand Filters & Parts Skim Filters & Parts Filter Parts

Still need help finding your filter? Send us the part numbers printed on the cartridge, outside diameter, overall length, top and bottom opening dimensions, and clear photos of both end caps. You can also call 800-918-9143 during normal business hours. Get help finding a filter.