Pentair O-Ring, Valve Adapter 2-3/8" ID, 3/16" Cross Section In stock$589
Quick overview
- Exact size 2-3/8 in. inside diameter, 3/16 in. cross section, the #2-332 size.
- Wide fit Listed for the Tagelus filter, top and side mount valves, the FullFloXF backwash valve, FNS filters, Nautilus and Nautilus Plus DE filters.
- Also called the bulkhead adapter o-ring The same ring appears under that name in Pentair parts listings.
- Two part numbers Shown as 274494 and as 274494Z, both referring to this ring.
- Seals the valve to the tank This is the joint between the valve adapter and the filter, and a hardened ring makes it weep under pressure.
- Silicone lubricant only Petroleum grease swells the rubber and shortens the life of the seal.
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Product details
The Pentair 274494 is the valve adapter o-ring, 2-3/8 in. inside diameter with a 3/16 in. cross section. Pentair also lists it as the bulkhead adapter o-ring, references it under the standard #2-332 size, and it appears in parts listings as 274494Z.
Where it goes
It seals the adapter joint between the valve and the filter tank. Pentair lists it for the Tagelus filter, top and side mount valves, the FullFloXF backwash valve, FNS filters, and the Nautilus and Nautilus Plus DE filters, which is why the same small ring turns up in so many different parts diagrams.
Why it fails
An o-ring is a round rubber gasket that is squeezed between two faces to hold pressure. Chlorine, heat and constant compression harden it and take the spring out of the rubber. Once it has taken a set it no longer fills its groove, and the joint begins to seep whenever the pump runs.
Fitting
Clean the groove and both sealing faces, seat the ring square without stretching it, and lubricate with a silicone based o-ring lubricant. Petroleum grease attacks the rubber and will cost you the new ring.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 274494 |
| Alternate part number | 274494Z |
| UPC | 788379695392 |
| Type | Valve adapter o-ring |
| Also called | Bulkhead adapter o-ring |
| Size reference | #2-332 |
| Inside diameter | 2-3/8 in. |
| Cross section | 3/16 in. |
| Part type | Pool pump part |
| Fits | Pentair Tagelus filter, top and side mount valve, FullFloXF backwash valve, FNS filter, Nautilus, Nautilus Plus D.E. |
| Shipping weight | 0.02 lb |
| Ships | Parcel |
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