Pentair/Purex Minimax/Minimax Plus/PowerMax 18-5/16" x 3/4" Bolt (73725)

Type:	Nuts Bolts & Screws
Mfr	Pentair/Purex
Mfg Part #	73725
Hzn Part #	47-110-1023

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TAGS: nutsboltsscrews, pentairpurex

Details

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SEE REPLACEMENT PART: OBSOLETE

Pentair/Purex Minimax/Minimax Plus/PowerMax 18-5/16" x 3/4" Bolt (73725) is a replacement fastening part for the compatible pump, filter, heater, valve, or equipment assembly identified in the title. Hardware like this is often needed when the original bolt is stripped, corroded, lost during service, or no longer tightens correctly. Using the proper fastener helps keep the assembly aligned and secured, which is important for preventing vibration, leaks, housing movement, or uneven compression on seals and gaskets. This is the type of part that is easy to overlook until a repair is already underway, making it useful to keep on hand for service work.

Before ordering, compare the length, thread, diameter, and application against the existing hardware or parts diagram. Avoid substituting random hardware when the bolt supports a wet-end, filter, valve, or pressure-related assembly.

Replacement hardware for the application listed in the product name.
Helps secure equipment components after service or repair.
Useful when the original bolt is missing, rusted, stripped, or damaged.
Verify thread size, length, and equipment compatibility before use.
Part number/reference: 73725.

Pentair / Purex – Pool Pumps, Filters, Heaters and Purex Replacement Parts

Who is Pentair / Purex?

Pentair / Purex refers to Pentair’s legacy Purex pool equipment line, which includes widely used pumps, filters, and heaters found in many existing pool systems. Purex has long been recognized for reliable, high-performance equipment, and Pentair continues to support these systems with compatible replacement parts and upgraded solutions.

What products does Pentair / Purex specialize in?

Pentair / Purex specializes in pool pumps, filtration systems, heaters, and replacement components. Their product lineup includes durable equipment designed for water circulation, filtration, and temperature control. Many Purex systems are still in operation today, making replacement parts essential for ongoing maintenance and repair.

Why choose Pentair / Purex parts for your pool or spa?

Pentair / Purex products are known for durability, consistent performance, and long service life. Their systems were built to withstand demanding pool environments, and Pentair replacement parts help extend the life of existing equipment. Pool professionals and homeowners choose Pentair / Purex parts for reliable compatibility and cost-effective repairs.

How do you identify and choose the correct Pentair / Purex part?

To select the correct Pentair / Purex component, it’s important to identify your existing equipment model and match part numbers for pumps, filters, or internal components. Many Purex parts require cross-referencing with current Pentair equivalents. Choosing the right part ensures proper fit, restores performance, and prevents system issues.

Need help finding the right Pentair / Purex part?

At Bath & Spa Parts Online, we carry a wide selection of Pentair / Purex pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.