Achieve a watertight, professional-grade plumbing connection on your Pentair SuperFlo or SuperMax pump with the Swimables SW-21-350 Union Kit. Serving as a direct stand-in for Pentair part 350157, this kit ships with two unions featuring a 1.5-inch internal slip and a 2-inch external slip, along with matching adaptors, threaded nuts, and fresh O-rings. Every piece is precision-molded to match factory tolerances, so you get a solid, drip-free seal that keeps water flowing at full volume through your circulation system.

Key Benefits

• Factory-Spec Pentair 350157 Replacement: Machined to identical dimensions as the OEM union, guaranteeing a flush, rattle-free fit on SuperFlo and SuperMax pump bodies.
• All-Inclusive Hardware: Each kit delivers two unions with 1.5-inch internal and 2-inch external slip connections, plus adaptors, nuts, and O-rings so nothing extra is needed at install time.
• Preserves Full Flow Rate: Smooth bore interior and tight tolerances prevent turbulence and restriction, keeping your pump operating at its designed capacity.
• Leak-Proof & Built to Last: Chemical-resistant polymer and premium O-rings create a dependable seal that holds up under pressure and varying water chemistry.

What's Included

• Couplers/Adapters
• Locking Nuts
• O-Rings

Compatibility

• Pentair SuperFlo Pumps
• Pentair Sta-Rite SuperMax Pumps

Specifications

• Brand: Swimables
• Part Number: SW-21-350

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SW-21-350
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