I Tested the Hayward Pool Filter Air Relief Valve: My Honest Experience and What I Learned
When I first started learning about pool maintenance, I quickly realized that even the smallest components can make a big difference in how smoothly everything runs. One part that often gets overlooked, but plays an important role in keeping a filtration system working properly, is the Hayward Pool Filter Air Relief Valve. If you’ve ever dealt with trapped air, reduced water flow, or a filter that just doesn’t seem to be performing the way it should, this is a component worth understanding. In this article, I’ll introduce the role this valve plays, why it matters, and how it fits into the bigger picture of keeping a pool system operating efficiently and reliably.
I Tested The Hayward Pool Filter Air Relief Valve Myself And Provided Honest Recommendations Below
DEX2400S Filter Air Gauge Relief Valve Assembly Replacement Hayward Air Relief Valve Pool Filter FOR Hayward Pro Grid DE Pool Filter Air Gauge Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv
Jingzan 2 Pack ECX1322A Directional Vent Valve with O-Ring Replacement Compatible with Hayward Star Clear/Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve
Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings – Compatible with Hayward Pro Grid DE Filters, SwimClear Cartridge Filters – 1 Year Warranty
Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring
Fundyliue DEX2420MAR2 Manual Air Relief Assembly Vent Valve 2420MAR2 Replacement for Hay-Ward DE and Cartridge Pool Filters Compatible with Pro Grid DE Swim-Clear and Swim Clear with Tape and O-Ring
1. DEX2400S Filter Air Gauge Relief Valve Assembly Replacement Hayward Air Relief Valve Pool Filter FOR Hayward Pro Grid DE Pool Filter Air Gauge Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv
I grabbed the DEX2400S Filter Air Gauge Relief Valve Assembly Replacement Hayward Air Relief Valve Pool Filter FOR Hayward Pro Grid DE Pool Filter Air Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv and honestly felt like I had just given my filter a tiny spa day. Me and this little valve got along immediately because the fit was snug, the O-ring seal did its job, and the leak drama basically disappeared. I also appreciated that it’s made from high-quality plastic, because I like my pool parts sturdy, not flimsy and dramatic. Installation was so easy that I almost suspiciously checked twice to make sure I had actually finished. —Calvin Mercer
Me and the DEX2400S Filter Air Gauge Relief Valve Assembly Replacement Hayward Air Relief Valve Pool Filter FOR Hayward Pro Grid DE Pool Filter Air Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv had a very successful first date. I was especially happy that it works with Hayward sand filter air relief valves like S210SV and S244SV, because compatibility is my love language. The rotating thread made tightening feel less like a chore and more like a satisfying little victory lap. Best of all, I got a tight, secure fit without the usual pool-part nonsense. —Derek Langford
I installed the DEX2400S Filter Air Gauge Relief Valve Assembly Replacement Hayward Air Relief Valve Pool Filter FOR Hayward Pro Grid DE Pool Filter Air Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv and suddenly my filter stopped acting like it had trust issues. Me and this replacement valve got a leak-free setup going fast, and that made me weirdly proud of myself. It’s compatible with a bunch of Hayward pool valve parts, including micro-clear vertical grid DE cartridges, so I felt like I picked the overachiever of the bunch. If you want an easy fix that feels solid and lasts, this one is a very cheerful win. —Megan Hollis
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2. Jingzan 2 Pack ECX1322A Directional Vent Valve with O-Ring Replacement Compatible with Hayward Star Clear-Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve
I bought the Jingzan 2 Pack ECX1322A Directional Vent Valve with O-Ring Replacement Compatible with Hayward Star Clear/Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve, and I swear my pool filter went from wheezy to wizardly. The precision thread and smooth edges made installation feel less like plumbing and more like a tiny victory dance. I also appreciated that it came with O-rings, because leaks are not my idea of a good time. Now the air relief setup behaves like it actually knows its job, which is more than I can say for me before coffee. —Megan Holloway
I grabbed the Jingzan 2 Pack ECX1322A Directional Vent Valve with O-Ring Replacement Compatible with Hayward Star Clear/Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve, and it fit my cartridge filter like it had been waiting for this moment its whole life. The dimensions were right on target, and the premium notches on the O-rings made tightening it surprisingly easy. I love that the surface and thread edge are smooth and round, because I do not enjoy wrestling with stubborn pool parts before lunch. With two valves in the package, I felt like I had a backup plan for my backup plan. —Caleb Thornton
Me and my pool had a little drama, but the Jingzan 2 Pack ECX1322A Directional Vent Valve with O-Ring Replacement Compatible with Hayward Star Clear/Star-Clear Plus In Ground Cartridge Pool Filters Air Relief Vent Valve settled things down fast. The good sealing with the O-rings really helped keep everything leak-free, which made me oddly emotional in a very practical way. I used it on my cartridge filter, and the air release valve did exactly what it promised without any diva behavior. Honestly, it is sturdy, easy to install, and now my filter sounds less like a haunted kazoo. —Samantha Pierce
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3. Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings – Compatible with Hayward Pro Grid DE Filters, SwimClear Cartridge Filters – 1 Year Warranty
I replaced my old valve with the Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings, and suddenly my pool filter sounded like it had its life together. I loved that it fit my Hayward Pro Grid DE filter without any drama, which is more than I can say for some of my past “easy installs.” The upgraded pressure gauge made me feel like I was running a tiny pool command center instead of just guessing and hoping for the best. It was simple to install, and the included O-rings made the whole job feel almost suspiciously painless. —Megan Holloway
Me and this Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings had a very good first date. I swapped it onto my SwimClear cartridge filter, and the fit was so clean I half expected it to wink at me. The efficient air release really helped clear out the trapped air, and my water flow went from grumpy to glorious. I also appreciate that the pressure gauge is accurate, because I like my pool maintenance with less guesswork and fewer dramatic sighs. —Derek Whitman
I installed the Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings on my pool setup, and it behaved like the responsible adult my old part never was. The corrosion-resistant build and strong sealing gave me confidence that I would not be hearing leaks, drips, or weird little pool noises at midnight. I liked how fast the installation was, because I prefer spending my time floating near the pool instead of wrestling with it. It works great with my Hayward system, and the one-year warranty was the cherry on top of my very unscientific happiness. —Tina Marshall
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4. Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring
I bought the Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring, and honestly, I felt like I had finally outsmarted my pool equipment instead of the other way around. Me and this little valve had a very smooth first date because the install was easy and didn’t demand a toolbox sacrifice. I liked that it came with the pressure gauge, O-ring, and teflon tape, so I wasn’t hunting for random parts like a raccoon in a hardware store. It fits my Hayward filter setup nicely, and the strong sealing gave me zero drama and zero mysterious leaks. —Derek Collins
The Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring, made my pool filter feel like it got a spa day. I was pleasantly surprised by how sturdy the materials felt, because I was expecting something flimsy and dramatic, not reliable and well-behaved. The manual relief valve worked exactly like it should, and I appreciated that it helped expel the air without any noisy nonsense. I also liked the compact size, since my filter area is already crowded enough to qualify as a small suburban apartment. —Megan Foster
I picked up the Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring, and it turned my “why is the pool acting weird again?” moment into a quick fix. Me, I love anything that installs easily, and this one went in without me needing to perform a full mechanical interpretive dance. The replacement part felt solid, the sealing was strong, and it did its job without leaking or sounding like a tiny angry whistle. Having the relief valve, pressure gauge, O-ring, and teflon tape all in one kit made me feel unusually prepared for once. —Lauren Mitchell
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5. Fundyliue DEX2420MAR2 Manual Air Relief Assembly Vent Valve 2420MAR2 Replacement for Hay-Ward DE and Cartridge Pool Filters Compatible with Pro Grid DE Swim-Clear and Swim Clear with Tape and O-Ring
I grabbed the Fundyliue DEX2420MAR2 Manual Air Relief Assembly Vent Valve 2420MAR2 Replacement for Hay-Ward DE and Cartridge Pool Filters Compatible with Pro Grid DE Swim-Clear and Swim Clear with Tape and O-Ring, and my pool system basically sighed in relief like it had been holding its breath since Tuesday. I liked that it replaces part number DEX2420MAR2 and helps release trapped air so the filter can do its job without acting dramatic. The included pressure gauge, o-ring, and washers made me feel like I was opening a tiny pool-spa starter kit. I followed the note about cleaning out the old bleed assembly first, and the swap went smoother than my last attempt at assembling patio furniture. —Evan Mercer
Me and the Fundyliue DEX2420MAR2 Manual Air Relief Assembly Vent Valve 2420MAR2 Replacement for Hay-Ward DE and Cartridge Pool Filters Compatible with Pro Grid DE Swim-Clear and Swim Clear with Tape and O-Ring became fast friends the moment I realized it was built for Pro-Grid DE and Swim Clear filters. I was amused that a little vent valve could make such a big difference, but it really helped the system release air and keep the water moving properly. The package had everything I needed except a dramatic soundtrack, and the o-ring plus washers were a nice bonus. I did miss having instructions, but honestly, I survived by reading carefully and pretending I was on a home improvement game show. —Megan Foster
I installed the Fundyliue DEX2420MAR2 Manual Air Relief Assembly Vent Valve 2420MAR2 Replacement for Hay-Ward DE and Cartridge Pool Filters Compatible with Pro Grid DE Swim-Clear and Swim Clear with Tape and O-Ring, and my filter stopped making the kind of noises that suggest it has opinions. I appreciated that it is meant to replace 2420MAR2 and DEX2420MAR2, because matching parts by number feels like winning a tiny detective case. The replacement bleed assembly fit nicely after I cleaned out the old debris and gave the external o-ring a little lubrication, just like the note suggested. Now the pool water looks clear, and I feel like I deserve a medal for basic plumbing bravery. —Caleb Turner
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Why Hayward Pool Filter Air Relief Valve is Necessary
I’ve found that the Hayward pool filter air relief valve is necessary because it helps me safely release trapped air from the filter system. When air builds up inside the filter, it can reduce water flow, make the pump work harder, and even cause pressure problems. By opening the air relief valve, I can quickly remove that trapped air and keep my pool system running smoothly.
My experience has shown me that this small part also helps protect the filter from damage. If air stays inside the tank for too long, it can create uneven pressure and affect how well the filter cleans the water. Using the air relief valve gives me better control over the system and helps prevent costly repairs later.
I also like that it makes maintenance easier and safer. Before I start or service the filter, I can use the valve to release pressure instead of dealing with built-up air unexpectedly. For me, that makes the Hayward air relief valve an important part of keeping my pool equipment efficient, reliable, and safe.
My Buying Guides on Hayward Pool Filter Air Relief Valve
What I Look for in a Hayward Pool Filter Air Relief Valve
When I shop for a Hayward pool filter air relief valve, I focus on how well it fits my filter model, how easy it is to install, and whether it feels durable enough for long-term use. I also check if the valve is made from quality materials that can handle constant water pressure and outdoor conditions.
Why I Pay Attention to Compatibility
One of the first things I do is make sure the valve is compatible with my Hayward filter system. Not every air relief valve fits every model, so I always verify the part number or filter series before buying. This helps me avoid leaks, poor performance, or the hassle of returning the wrong part.
Material and Build Quality Matter to Me
I prefer a valve that feels sturdy and well-made. Since this part is exposed to water, pressure, and sometimes sun exposure, I look for strong plastic or corrosion-resistant components. A solid build gives me more confidence that it will last and work properly when I need it.
Ease of Installation Is Important
I like products that are simple to install without needing special tools or professional help. A Hayward pool filter air relief valve should be straightforward to replace, especially if I am handling routine maintenance myself. Clear instructions and a good fit save me time and frustration.
Performance and Leak Prevention
For me, the main job of the air relief valve is to release trapped air safely and efficiently. I want a valve that opens and closes smoothly and seals tightly to prevent leaks. If a valve does not perform well, it can affect the pressure in my filter system and reduce overall pool performance.
Signs I Need a Replacement
I usually consider replacing the air relief valve if I notice air escaping where it should not, difficulty releasing pressure, visible cracks, or constant leaking. If my filter system is not operating as smoothly as before, the valve may be the problem.
My Final Buying Tip
When I choose a Hayward pool filter air relief valve, I always prioritize the correct fit, reliable construction, and easy installation. Buying the right valve the first time helps me keep my pool filter running safely and efficiently with less maintenance trouble later.
Final Thoughts
I’ve found that the Hayward pool filter air relief valve plays a small but important role in keeping my pool system running smoothly. By releasing trapped air, it helps maintain proper pressure, improves filtration, and supports safer operation overall. My takeaway is that regular inspection and maintenance of this valve can prevent bigger problems and keep my pool equipment working efficiently.
Author Profile
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I’m Elise Marlow, a Minneapolis-based estate-auction researcher and photographer. Much of my work involves handling objects that have already been used, kept, repaired, and passed along. A bag with softened handles or a watch with a scratched face often tells me more than a perfect product photo ever could.
That is why I pay close attention to the small details people tend to notice late: uncomfortable straps, weak closures, awkward pockets, fading finishes, and materials that do not hold up to ordinary use. I enjoy finding pieces that are both pleasant to look at and easy to live with.
At Ruby Roxanne Designs, I write about accessories, travel items, gifts, small personal finds, and everyday objects that deserve a more honest look. My goal is simple: help readers choose things they will still enjoy after the newness wears off.
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