Pentair 351157 1.5 inch black union kit for SuperMax and SuperFlo pumpsPentair 1.5" Black Union Kit for SuperMax and SuperFlo, 351157 In stock$8299
Pentair 351157 1.5 inch black union kit for SuperMax and SuperFlo pumps
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Pentair 1.5" Black Union Kit for SuperMax and SuperFlo, 351157

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$8299
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Quick overview

  • Genuine Pentair Factory part 351157, the union kit Pentair supplies for these pumps.
  • Complete kit Contains the adapters, the nuts and the O-rings, not just one piece.
  • One and a half inch Sized for 1.5 inch pump connections.
  • SuperMax and SuperFlo Made for the SuperMax and SuperFlo high performance pumps.
  • Black The black finish version of the union kit.
  • Fixes a weeping union Leaks at the pump usually trace to a tired union O-ring or a cracked nut, and this kit replaces both.
Full description and specifications ↓

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Product details

The Pentair 351157 is the black 1.5 inch union kit for the SuperMax and SuperFlo high performance pumps. It is the genuine Pentair part.

What is in the box

The kit is not a single fitting. It carries the adapters that glue into the plumbing, the union nuts that thread onto the pump, and the O-rings that seal the joint, so one order covers a complete rebuild of the connections at both ports.

When to use it

Water at the pump is usually water at the unions. The O-ring takes a set over the years, or a nut gets cranked down hard enough to crack, and the joint starts to weep. Rather than chase one part at a time, replacing the whole union assembly puts the pump connections back to new.

From Pool School

How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read Replace the Pool Pump Motor or the Whole Pump?The manufacturers' tests first, what each repair replaces, and the federal motor rule. Read

Where this part goes

24 Key 24 on the Pentair SuperFlo PumpFits every model in the drawing.See it on the diagramAll Pentair SuperFlo Pump Parts 38 parts and the drawing
Specifications
Brand Pentair
Manufacturer part number 351157
UPC 788379830120
Type Pump union kit
Size 1.5"
Color Black
Included Adapters, nuts and O-rings
Fits Pentair SuperMax and SuperFlo high performance pumps
Shipping weight 0.75 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What comes in the kit?
Replacement adapters, nuts and O-rings for the union connections.
Which pumps is it for?
The Pentair SuperMax and SuperFlo high performance pumps.
What size is it?
One and a half inch, in black.
My pump drips at the union, is this the fix?
Usually. A union that weeps is almost always a flattened or nicked O-ring, sometimes a nut that has been cross threaded or cracked. This kit covers both parts on both unions.
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