
Quick overview
- Brass, not plastic A machined brass valve body rather than a molded one.
- Quarter inch NPT Threads into a 1/4" NPT port.
- Bleeds trapped air Opening it lets air escape as the system primes, so the tank fills with water instead of holding an air pocket.
- Fits HRPB sand filters Listed for the Sta-Rite HRPB high rate sand filters, models HRPB20, HRPB24 and HRPB30.
- Fits HRP and DEPB filters Also listed for the HRP sand filters, models HRP 20, 24 and 30, and for the DEPB vertical DE filters.
- Use it before opening the filter Always release pressure at this valve before undoing a filter clamp or lid, every time.
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Product details
Pentair U212-252D is a brass air release valve with a 1/4 inch NPT thread, listed for the Sta-Rite HRPB high rate sand filters, the HRP sand filters and the DEPB vertical DE filters.
What it is for
Air gets into a filter tank every time the system is opened or loses prime. It gathers at the top, takes up space the water should occupy and drops the filter efficiency. The air release valve gives it somewhere to go: open the valve on start up, wait for a steady stream of water, and close it again.
A safety habit worth keeping
Use this valve to relieve pressure before you open a filter clamp or lid. A tank still under pressure can throw a lid, and that is the injury nobody expects. Opening the release valve first takes seconds.
Brass body
The valve body is brass rather than plastic, which is what you want on a part that gets handled and turned regularly through the season.
| Brand | Pentair |
|---|---|
| Manufacturer part number | U212-252D |
| UPC | 788379783495 |
| Type | Air release valve |
| Part type | Pool filter part |
| Material | Brass |
| Thread | 1/4" NPT |
| Fits | Sta-Rite HRPB20, HRPB24, HRPB30 high rate sand filters |
| Also fits | HRP 20, HRP 24, HRP 30 sand filters, Sta-Rite DEPB vertical DE filters |
| Shipping weight | 0.1 lb |
| Ships | Parcel |
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