Pentair 39501200 pot to volute gasket for Ultra-Flow pumpsPentair Gasket for Pot to Volute, 39501200 In stock$1499
Pentair 39501200 pot to volute gasket for Ultra-Flow pumps
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Pentair Gasket for Pot to Volute, 39501200

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$1499
In stock
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Quick overview

  • Seals pot to volute The joint between the strainer pot and the volute, which is a suction side seal.
  • 3.25 in by 3.25 in Measure the old gasket against that figure before ordering.
  • Genuine Pentair Factory part 39501200 rather than a cut to fit substitute.
  • For Ultra-Flow pumps Listed for the Ultra-Flow pool and spa pump and the American Products Americana line.
  • A suction side leak pulls air, not water The symptom is a pump that loses prime or runs with bubbles, not a puddle on the pad.
  • Replace it whenever the pump is split Old gaskets take a set and rarely seal again once disturbed.
Full description and specifications ↓

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Product details

The Pentair 39501200 is the pot to volute gasket for the Ultra-Flow pool and spa pump, measuring 3.25 inches square. Pentair also lists it against the American Products Americana pumps.

What it seals

This gasket sits between the strainer pot and the volute. That joint is on the suction side of the pump, which changes how a failure shows up: instead of water on the pad, you get air drawn into the pump. A basket that never fills properly, a pump that will not hold prime, or bubbles at the returns all point back to a suction side seal.

Change it while you are in there

Gaskets take a permanent set against the surfaces they have been clamped to for years. Once the pump has been split, the old one has effectively been used up, and reusing it usually means doing the whole job again in a few weeks.

Specifications
Brand Pentair
Manufacturer part number 39501200
UPC 788379699550
Type Pot to volute gasket
Material Plastic
Part Type Pool Pump Part
Dimensions 3.25" x 3.25"
Fits Pentair Ultra-Flow pool and spa pump, American Products Americana pump
Shipping weight 0.02 lb
Ships Parcel

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Questions and answers

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

What does this gasket seal?
The joint between the strainer pot and the volute on the pump.
What size is it?
3.25 inches by 3.25 inches.
My pump keeps losing prime. Could this be it?
It can be. This is a suction side seal, so when it fails the pump draws air rather than leaking water. A pump that will not hold prime or runs with air in the basket is the classic sign.
Should I replace it if it still looks fine?
Yes, if you have the pump apart. Gaskets compress into a shape over years and generally will not reseal once the joint has been broken.
Ask your own question