
Quick overview
- Seals the valve body The o-ring that keeps water inside the valve body instead of weeping past it.
- H-Series and M-Series Listed for the American Products 2 in. H and M Series multiport valves.
- SM and SMBW 2000 Also serves the Purex 2000 Series backwash valves used on SM and SMBW filters.
- Cheap part, expensive symptom A hardened o-ring here reads as a leaking valve and sends people shopping for a whole multiport.
- Replace on every teardown Once a valve is apart, the body o-ring is the piece you do not put back used.
- Genuine Pentair Factory part 71427.
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Product details
The Pentair 71427 is the H-Series valve body o-ring. It is the genuine factory seal for the valve body, and it turns up on several older valve families.
Where it is used
Pentair lists it for the American Products 2 in. H and M Series multiport valves, and for the Purex 2000 Series backwash valves fitted to SM and SMBW filters. It also appears in the QuietFlo and Aquatron pump parts listings.
Why it fails
O-rings do not wear out so much as they harden. Years of heat, chlorine and compression take the spring out of the rubber, it takes a permanent set, and the seal starts weeping at the body. The leak looks like a failed valve, which is how a five dollar part ends up costing someone a whole multiport.
While you are in there
The union o-ring and the rotor shaft o-ring are separate parts. If the valve is coming apart anyway, it is worth having all three on hand rather than opening it twice.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 71427 |
| UPC | 788379695552 |
| Part type | Pool pump part |
| Type | Valve body o-ring |
| Fits | American Products 2 in. H and M Series multiport valves; Purex SM and SMBW 2000 Series backwash valves |
| Also listed under | Pentair QuietFlo and Aquatron pump parts |
| Shipping weight | 0.05 lb |
| Ships | Parcel |
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