Pentair 350073 Hex Head Cap Screw Eq-series Pool Pump

Product Description

The PENTAIR 350073 is a 3/8 inch-16 x 1-1/2 inch hex head cap screw manufactured from 18-8 stainless steel. The 18-8 alloy grade delivers strong corrosion resistance in wet, chemical-exposure environments common to commercial pool and spa installations. This fastener is an OEM-specified component used to secure pump housings and related assemblies on Pentair EQ-Series commercial pump units. Installation is typically performed by licensed pool and mechanical service technicians during pump assembly, disassembly, or seal and impeller replacement procedures.

This screw is designated for use with Pentair EQ-Series commercial pool and spa pump models EQ300, EQ500, and EQ750-3 Ph. These are heavy-duty commercial circulation pumps commonly found in aquatic facilities, large spas, and commercial water features. When replacing worn or corroded hardware during pump rebuilds or routine service, using the correct OEM-spec fastener ensures proper clamping force and material compatibility with the pump housing components.

Key Features

• 18-8 stainless steel construction resists corrosion in chlorinated and saltwater pool environments
• 3/8 inch-16 thread pitch matches OEM specifications for EQ-Series pump assemblies
• 1-1/2 inch length provides correct engagement depth for designated pump housing applications
• Hex head drive allows standard socket or wrench installation without specialized tooling
• OEM part number 350073 ensures direct fitment without modification

Compatibility

Designed for use with Pentair EQ-Series commercial pool and spa pumps, specifically models EQ300, EQ500, and EQ750-3 Ph.

Installation Notes

Installation and removal should be performed by a qualified pool equipment technician or licensed mechanical contractor. Always shut off power to the pump at the disconnect before beginning any disassembly. Use a properly sized socket or combination wrench to avoid rounding the hex head. Do not overtighten stainless steel fasteners into threaded housings, as galling can occur without proper lubrication or anti-seize compound.

Technical Specifications

• Thread Size: 3/8 inch-16
• Length: 1-1/2 inches
• Drive Type: Hex Head
• Material: 18-8 Stainless Steel
• Part Type: Screw
• Product Weight: 35 pounds

Standard Information

• Brand: PENTAIR
• Manufacturer Part Number: 350073