Val-Pak V38-221 Quantum bottom manifold gasketVal-Pak Quantum Bottom Manifold Gasket, V38-221 In stock$12699
Val-Pak V38-221 Quantum bottom manifold gasket
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Val-Pak Quantum Bottom Manifold Gasket, V38-221

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$12699
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Quick overview

  • Replaces 570003 Val-Pak V38-221 is the aftermarket equivalent of the original 570003 gasket.
  • Bottom manifold Seals at the base of the tank where the cartridges seat.
  • Quantum cartridge filters Made for the Pentair Quantum cartridge filter family.
  • Stops bypass A flattened or nicked manifold gasket lets unfiltered water slip past the elements.
  • Cheap insurance Worth changing any time the manifold is out for a cartridge service.
  • Check what you removed Pentair cartridge filters use different manifold seals between families, so match the old part before ordering.
Full description and specifications ↓

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Product details

This is the bottom manifold gasket for Pentair Quantum cartridge filters, supplied by Val-Pak as part number V38-221. It replaces original part 570003.

What it seals

The bottom manifold is what the cartridges seat into at the base of the tank. The gasket between that manifold and its mating face is what forces water through the elements rather than around them, so a flattened, nicked or hardened gasket sends dirty water back to the pool while the pressure gauge still reads normal.

When to change it

Replace it whenever the manifold comes out for a cleaning or a cartridge change, and always if the old gasket is cracked or has taken a permanent set. A gasket costs very little next to the time spent chasing a filter that will not clear the water.

Confirm you have a Quantum filter and that the piece you removed matches, since Pentair cartridge filters use different manifold seals across their families.

Specifications
Brand Val-Pak
Manufacturer part number V38-221
Type Bottom manifold gasket
Fits Pentair Quantum cartridge filters
Replaces Original part number 570003
Listed under American Products Quantum RPM cartridge filter parts
Shipping weight 0.6 lb
Ships Parcel

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Questions and answers

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

What original part does this replace?
Original part number 570003.
Which filter is it for?
The bottom manifold of Pentair Quantum cartridge filters.
My pressure reads normal but the water will not clear. Could this be it?
It can be. A failed manifold gasket lets water bypass the cartridges instead of passing through them, so dirt returns to the pool while the gauge still looks fine.
Should I replace it during a routine cartridge cleaning?
It is the sensible time. The manifold is already out, and a gasket that has gone hard or taken a permanent set will not reseal properly once disturbed.
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