MANUAL AIR RELIEF ASSEMBLY
Product Overview
The standard specification replacement for venting trapped air and monitoring tank pressure on Hayward cartridge and D.E. filters.
Engineered by Hayward to maintain safe internal operating pressure below 50 PSI, this genuine manual air relief assembly fits SwimClear cartridge and Pro-Grid D.E. filter bodies. It features a high-impact ABS body, integrated 1/4-inch NPT port for your pressure gauge, and heavy-duty internal O-rings to eliminate lid leaks.
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Benefits & What Makes It Different
Exact OEM Fit
Direct factory replacement for Hayward SwimClear (C2025–C5025) and Pro-Grid (DE2420–DE7220) series filter tanks.
Integrated 1/4-Inch Gauge Port
Accommodates standard 0–60 PSI center-back pressure gauges for precise system diagnostic readings.
UV-Resistant Polymer Body
Molded from chemical-resistant thermoplastic to withstand high-UV exposure and sanitizing chemistry without cracking.
Compatibility
- Hayward SwimClear Cartridge Filters (C2020, C3020, C4020, C5020, C7020)
- Hayward Pro-Grid D.E. Filters (DE2420, DE3620, DE4820, DE6020, DE7220)
- Standard 1/4-inch NPT threaded pressure gauges
When To Use This
Pro Tip
Always apply silicone-based pool lubricant to the body O-ring before pressing it into the filter lid—dry insertion can pinch the seal and cause immediate 30 PSI micro-leaks.
Common Questions & Instructions
What symptoms indicate my Hayward air relief assembly needs replacement?
Constant dripping from the bleed valve threads, water spraying around the gauge fitting, or a valve stem that will not seal when closed all indicate worn O-rings or cracked plastic requiring a full assembly replacement.
Can I install this air relief assembly myself without a technician?
Yes, installation takes under 10 minutes. Turn off the pump, open the bleed valve to fully depressurize the tank to 0 PSI, unscrew the lock ring or retaining clip, and press the new lubricated assembly into the top lid socket.
Should I use Teflon tape on the pressure gauge when installing into this assembly?
Apply 2 to 3 wraps of standard PTFE Teflon tape around the 1/4-inch male threads of the pressure gauge before hand-tightening it; avoid liquid pipe dope, which can degrade plastic threads.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
