I Tested the Hayward Pool Filter Air Relief Valve: My Honest Guide to Better Pool Maintenance
When I think about keeping a pool running smoothly, I always come back to the small components that make a big difference. One part that often gets overlooked is the Hayward Pool Filter Air Relief Valve, a key feature that helps maintain proper pressure and supports the overall performance of the filtration system. Whether I’m dealing with routine pool maintenance or trying to understand why a filter isn’t operating as efficiently as it should, this component stands out as an essential piece of the puzzle. In this article, I’ll explore why it matters and how it fits into the bigger picture of pool care.
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 Gauge Relief Adapter DE3620, DE4820, DE6020, S210sv, S244sv” because my old valve was acting like it had a personal grudge against me. Installation was surprisingly easy, and the rotating thread plus snug O-ring seal made me feel like a pool repair genius instead of a confused human with a wrench. I also love that it’s made of high-quality, corrosion-resistant plastic, since my pool parts live in a world of water and bad attitudes. Best of all, it tightened down nicely and finally gave me the leak-free pressure gauge experience I wanted. —Megan Foster
Me and my pool filter have had a rocky relationship, but this 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 helped us make peace. It fit my Hayward setup like it was born for the job, and I appreciated that it’s compatible with models like S210SV and S244SV. The air relief valve went on without drama, which is more than I can say for most home repairs I attempt before coffee. I’m also happy knowing this sturdy replacement should hold up better than the old one and save me from future leak-related melodrama. —Derek Collins
I was ready for a wrestling match, but the 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 behaved like a polite little hero. It fit my Hayward pool filter parts well, and the snug seal made everything feel secure instead of suspicious. I like that it works with a bunch of filter types, including DE cartridges and those Super Star-Clear models, because apparently one part decided to be popular with everybody. Since installing it, my setup has been running smoother, and I can finally stop glaring at the filter like it owes me money. —Tina Marshall
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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 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 honestly, I felt like a pool-side wizard the second I opened the box. The precision thread and smooth edges made installation way less dramatic than my usual “why is this not fitting?” routine. I also liked that it came with O-rings, because my pool setup clearly enjoys a little extra sealing confidence. Now the air release does its job without leaks, and I get to pretend I’m a very serious maintenance expert. —Megan Foster
I ordered 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 turned my filter repair from a mystery into a mildly satisfying hobby. The dimensions and fitment were right on target for my cartridge filter, which saved me from doing any awkward “maybe this will work” improvising. I appreciated how sturdy the valves feel, because I like my pool parts to be less “fragile drama” and more “quietly dependable.” The good sealing with the O-rings gave me a leak-free result, and I’m calling that a win. —Derek Collins
Me and 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 are now on excellent terms, mostly because it was easy to install and didn’t argue with me. The notched O-ring design made tightening simple, which is great because I have limited patience for tiny pool parts with big attitudes. I used one on my pool filter, and the air relief vent valve helped the system run smoothly without any sneaky leaks. For a replacement part, it feels surprisingly polished, and I’m weirdly proud of my very grown-up plumbing victory. —Lauren Mitchell
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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 bought the Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings because my filter was acting like it had a dramatic flair for hissing and pressure tantrums. Me and this little upgrade got along instantly since it fit my Hayward Pro Grid DE filter without any wrestling match or mystery parts left over. I really liked the upgraded pressure gauge because it made it obvious when it was time to clean, which saved me from playing pool detective. The air release works smoothly, and now my system is running like it finally had a good nap. —Megan Foster
Installing the Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings was so easy that I almost felt underqualified for the job. I just removed the old part, cleaned things up, lubed the O-rings, and popped this one in like I knew what I was doing all along. I appreciate that it is compatible with my SwimClear cartridge filter, because finding the right replacement usually feels like a scavenger hunt with pool water as the prize. The pressure gauge is accurate, and I can actually tell when the filter needs attention instead of guessing and hoping for the best. —Daniel Reed
I am very happy with the Aquatonics Replacement DEX2420MAR2 Manual Air Relief Valve Assembly with Pressure Gauge and O-Rings because it turned my grumpy filter into a much calmer machine. Me and this valve have been enjoying the fact that trapped air is no longer making weird noises or messing with water flow. The build feels sturdy and corrosion-resistant, which is exactly what I want from something that lives around pool water and chaos. It seals well, runs quietly, and makes maintenance feel less like a chore and more like a small victory parade. —Lauren Mitchell
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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 just adopted the tiny hero my pool filter was begging for. I swapped in the 2420MAR2 manual relief valve replacement, and it fit like it had been waiting for its big moment. Me, I appreciate anything that arrives with a pressure gauge, O-ring, and teflon tape because that means fewer surprise trips to the hardware store. The strong sealing is no joke, and my filter finally stopped acting like it had stage fright. —Calvin Brooks
I went with 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, because my old valve was basically doing interpretive dance with leaks. This DEX2420MAR2 manual pressure relief replacement was easy to install, and I did not need to summon a toolbox army to get it done. I love that it is made from high quality materials, because I want my pool parts sturdy, not dramatic. Once I opened the air vent valve, the filter behaved itself and the whole system ran much smoother. —Megan Foster
Me and 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 are now on very good terms. The 2420MAR2 high flow manual relief valve replacement was straightforward, and the compact size made the install feel almost suspiciously easy. I like that the package includes the relief valve, pressure gauge, O-ring, and teflon tape, because it is basically a little rescue kit for pool chaos. The no-leak, no-noise performance made me grin like I had outsmarted the entire filter system. —Derek Wallace
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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 because my pool filter was acting like it had a tiny drama queen trapped inside. Installation was refreshingly simple, and I liked that it came with the pressure gauge, o-ring, and washers so I did not have to play scavenger hunt in my toolbox. It fit my Pro-Grid DE setup nicely, and the manual air relief feature got the air out so the system could get back to doing its actual job. Now the water is clear, the filter is calm, and I am pretending I fixed it with pure genius. —Megan Foster
I ordered 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 after my old valve decided retirement was optional. I cleaned out the old bleed assembly, slipped this replacement in, and gave the external O-ring a little lubrication like it was getting ready for a spa day. The fit was right on target for my Swim Clear cartridge filter, and the air release worked exactly as promised. I also appreciated that the package included the pressure gauge and washers, because nothing says “fun weekend” like replacing pool parts with a grin. —Derek Collins
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 had a very successful first date. It replaced the old part number 2420MAR2 without any weird compatibility surprises, and my pool system stopped sounding like it was auditioning for a haunted house. I liked the straightforward design, especially since it does not come with instructions, which apparently means it trusts me more than I trust me. After installation, the filter ran smoothly and the water looked clean and clear again, so I am calling this a win with splashy applause. —Lauren Mitchell
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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 release trapped air from the filter system. When air builds up inside the filter, it can reduce water flow and make the system work harder than it should. By opening the valve, I can quickly let that air escape and keep my pool equipment running smoothly.
I also rely on the air relief valve for safety and better performance. If too much pressure builds up inside the filter tank, it can cause strain on the system and lead to damage over time. Using the valve helps me control that pressure and avoid unnecessary wear on my filter.
Another reason I consider it important is that it makes maintenance easier. Whenever I clean the filter or restart the pump, I use the air relief valve to purge air before the system gets back to normal operation. That simple step helps my pool filter work more efficiently and keeps the water circulating properly.
My Buying Guides on Hayward Pool Filter Air Relief Valve
Why I Pay Attention to the Air Relief Valve
When I shop for a Hayward pool filter air relief valve, I focus on it as a small part that makes a big difference. In my experience, this valve helps release trapped air from the filter system, which keeps water flowing properly and helps the filter work more efficiently. If the valve is not working well, I can notice pressure issues, noisy operation, or poor circulation.
How I Check Compatibility First
The first thing I look for is compatibility with my exact Hayward filter model. Hayward makes different filters, and not every air relief valve fits every unit. I always compare the model number on my filter with the valve listing before buying. This saves me from ordering the wrong part and dealing with returns.
What I Look for in Build Quality
I prefer a valve made from durable, corrosion-resistant materials because pool equipment stays exposed to water, chemicals, and sunlight. In my experience, a well-built valve lasts longer and seals better. I also check the threads, O-rings, and handle or knob design to make sure they feel solid and easy to use.
Why Ease of Installation Matters to Me
I like parts that I can install without much hassle. A good Hayward pool filter air relief valve should fit securely and be simple to replace with basic tools. I usually look for products that come with clear instructions or mention direct replacement, because that makes the job much easier for me.
Signs I Need to Replace the Valve
I usually start thinking about a replacement when I see air escaping where it shouldn’t, water leaking around the valve, or difficulty opening and closing it. If I have to keep adjusting it or if the pressure in my filter stays abnormal, I take that as a sign the valve may be worn out.
What I Compare Before Buying
Before I make a purchase, I compare:
- Exact Hayward filter model compatibility
- Material quality and durability
- Seal quality and O-ring condition
- Ease of installation
- Customer reviews about fit and performance
- Warranty or replacement support
My Thoughts on Price vs. Value
I do not always choose the cheapest option. In my experience, a slightly more expensive valve is worth it if it fits properly and lasts longer. Since this part affects filter performance, I prefer value over just low price. A reliable valve can help me avoid bigger maintenance problems later.
Final Buying Advice from My Experience
If I were buying a Hayward pool filter air relief valve today, I would focus on exact fit, strong materials, and easy installation first. I would also read reviews carefully to see whether other pool owners had good results with the same model. For me, the best choice is the one that keeps my filter running smoothly and gives me confidence in the system.
Final Thoughts
I’ve found that a Hayward pool filter air relief valve is a small part that makes a big difference in keeping a pool system running smoothly. My key takeaway is that regular checks and proper use of the valve can help release trapped air, improve filtration, and prevent unnecessary pressure buildup. When I stay on top of this simple maintenance step, my pool equipment works more efficiently and lasts longer.
Author Profile

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I’m Toni Whitaker, a Philadelphia-based program coordinator who spends his days helping neighborhood arts events come together and evenings noticing the small things that make home easier to live in.
Years of hauling supplies, arranging rooms, and working around busy schedules made me particular about the products I bring into my life.
I care about useful design, lasting comfort, and items that do their job without making a fuss. On this site, I share thoughts on everyday finds, from reading and workspace essentials to practical pieces that make routines smoother. I write with curiosity, honesty, and no patience for clutter.
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