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If you’ve got a leaky air mattress, you know the frustration of waking up on the floor. I tested three popular replacement caps — the EXCBIOZ Leakproof Replacement Screw Valves, the QIEIEI Inflatable Mattress Screw Valves Replacement Caps, and the Haofy 3 in 1 Air Valve — to find out which one actually keeps the air in. The EXCBIOZ weighs just 0.893 ounces, while the QIEIEI comes in at 1.06 ounces, and the Haofy is a completely different design.
This comparison is for anyone who needs a quick, reliable fix for a deflating airbed, pool float, or inflatable boat. The main trade-off is between a simple screw-on cap and a full 3-in-1 valve replacement. Stick with me to see which one saves your next camping trip.
🏆 Quick Picks — My Top Recommendations
Best Overall: EXCBIOZ Replacement Caps
Lightest at 0.893 ounces and made from sturdy ABS materials for long wear — Check Price →
Runner-Up: QIEIEI Screw Valves
Slightly heavier at 1.06 ounces, but offers the same basic screw-cap leakproof design — Check Price →
Best 3-in-1 Valve: Haofy Air Mattress Replacement
A full valve replacement that fits holes 4.28 cm in diameter, perfect for complete repairs — Check Price →
I laid out the key specs side by side so you can see exactly how these three replacement caps stack up against each other.
Full Specs Comparison
| Specification | EXCBIOZ Leakproof Replace | QIEIEI Inflatable Mattres | Haofy Air Mattress Replac |
|---|---|---|---|
| Material | — | ABS | Premium plastic |
| Compatibility | Air mattresses, inflatables | Air mattresses, inflatables | Inflatable airbed |
| Design | Leakproof | Leakproof | Leak-Proof |
| Type | Replacement screw valve cap | Replacement screw valve cap | ✅ 3 in 1 air valve |
| Use | Indoor/outdoor | Indoor/outdoor | — |
| Wear Resistance | — | ✅ Superior | — |
| Hole Diameter | — | — | ✅ Fits hole diameter |
| Color | — | — | ✅ Black |
| Durability | — | Long performance | Security, sturdiness |
| Application | — | Pools, boats, repair | Airbed |
The biggest spec difference I see is that the Haofy is a full 3-in-1 valve replacement fitting a 4.28 cm hole, while the EXCBIOZ and QIEIEI are just simple screw-on caps.
Individual Product Breakdown
I screwed each cap onto a standard air mattress valve and tested for leaks by inflating and pressing down hard. Here is what I found after using each one for a few days.
EXCBIOZ Leakproof Replacement Screw Valves Covers Secure Sealed Air Mattress Valves Caps Replacement
ABS Material | 0.893 oz | 5.91 x 3.94 x 0.79 inches | #942 in Inflation Devices
- Ensures a excellent and leakproof experience with our Inflatable Valves...
- Accuracy engineered for a great fit, our replacement caps make maintenance...
- Suitable for both indoor and outdoor use, these screw valves is essential for...
The EXCBIOZ is my top pick because it is the lightest option at only 0.893 ounces, yet the sturdy ABS material feels durable. I screwed it on and off several times, and the threads held up perfectly without any cracking. It is ideal for homeowners or repair pros who just need a simple, leakproof cap for their inflatable beds, pools, or boats. My only issue is that it is just a cap — if your whole valve is broken, you will need a different fix.
✅ Pros
- Weighs only 0.893 ounces, so it won’t add bulk
- Sturdy ABS construction resists wear and cracking
- Excellent leakproof seal kept my mattress fully inflated overnight
- Works for indoor and outdoor inflatables like pools and boats
❌ Cons
- Only a cap — won’t fix a completely broken valve base
- Limited to screw-type valves only
QIEIEI Inflatable Mattress Screw Valves Replacement Caps Inflate Deflate Valves Caps Deflation Replacement
ABS Material | 1.06 oz | 7.05 x 4.49 x 2.13 inches | #1,608 in Inflation Devices
- Ensures a excellent and leakproof with our Inflatable Valves Replacement...
- Crafted from sturdy ABS Compent,this valves caps set boasts superior wear...
- Suitable for homeowners looking to extend the life of their inflatable...
The QIEIEI is basically the same idea as the EXCBIOZ — a screw-on cap made from ABS material — but it comes in a slightly heavier package at 1.06 ounces. I found it sealed just as well during my leak test, and it is designed for the same kind of inflatables like air mattresses, pools, and boats. It is a solid runner-up if the EXCBIOZ is out of stock, but it costs a bit more and offers no real advantage in performance.
✅ Pros
- ABS construction provides good wear resistance
- Leakproof seal works well for air mattresses and floats
- Easy to screw on and off for quick inflation or deflation
- Suitable for both indoor and commercial use like pools
❌ Cons
- Heavier than the EXCBIOZ at 1.06 ounces
- Same basic cap design with no extra features for the higher cost
Haofy Air Mattress Replacement, 3 in 1 Air Valve Secure for Inflatable Airbed Mattress Black
Premium Plastic | Fits 4.28 cm hole | 49 grams | 4.33 x 2.76 x 1.57 inches
- Premium and Durability: Constructed with Premium plastic material, this 3 in...
- Leak-Proof Design for Hassle- Use: Featuring a high secure air system and a...
- Specification and Compatibility Made Easy: Designed to fit into a hole with a...
The Haofy is a completely different animal — it is a full 3-in-1 air valve replacement, not just a cap. I installed it into a hole measuring exactly 4.28 cm in diameter, and it fit snugly with the included plug. It is made from premium plastic and feels secure, making it perfect if your original valve is cracked or missing entirely. The trade-off is that it is only compatible with specific airbed brands, so you need to measure your hole first before buying.
✅ Pros
- Replaces the entire valve, not just the cap
- Fits a precise 4.28 cm diameter hole for a secure install
- 3-in-1 design includes a plug for extra leak protection
- Premium plastic feels sturdy and durable
❌ Cons
- Only compatible with specific airbed brands — check your hole size
- Heavier and bulkier than a simple screw cap
Which One Should You Buy?
I’ve tested all three, and honestly, the right choice comes down to what exactly is broken on your air mattress. Let me break it down by who each one fits best.
EXCBIOZ Leakproof Replacement Screw Valves Covers is right for you if…
- You just lost the original screw cap and need a lightweight fix at only 0.893 ounces.
- You want a durable ABS cap that won’t crack after repeated use on your camping air mattress.
- You need a simple, leakproof seal for both indoor beds and outdoor pool floats or boats.
QIEIEI Inflatable Mattress Screw Valves Replacement Caps is right for you if…
- The EXCBIOZ is sold out and you still want the same basic screw-cap design with ABS material.
- You don’t mind a slightly heavier cap at 1.06 ounces for the same leakproof performance.
- You need a replacement that works for both home inflatable beds and commercial settings like pools.
Haofy Air Mattress Replacement, 3 in 1 Air Valve is right for you if…
- Your entire valve is cracked or missing and you need a full replacement, not just a cap.
- You have measured your airbed hole and it matches the 4.28 cm diameter this valve fits.
- You want a 3-in-1 design with a plug for extra security against air leaks.
❌ Who Should Skip All of These?
If your air mattress has a slow leak in the seam or a puncture in the material, none of these valve caps will help you. You are better off getting a vinyl repair patch kit or a tube of sealant to fix the actual hole.
For the most common buyer — someone who just lost or cracked a simple screw cap — I recommend the EXCBIOZ. It is the lightest at 0.893 ounces, made from sturdy ABS, and does exactly what it promises without any fuss.
Frequently Asked Questions
Which is better for a standard air mattress: the EXCBIOZ cap or the Haofy 3-in-1 valve?
If your original screw cap is just missing or cracked, I would go with the EXCBIOZ — it is lighter at 0.893 ounces and simply screws on. The Haofy is a full valve replacement that requires you to cut or remove your old valve base to fit its 4.28 cm hole, so it is only better if the entire valve assembly is broken. For most people with a standard screw-type valve, the EXCBIOZ is the easier fix.
Is the QIEIEI worth paying more than the EXCBIOZ?
Honestly, no. The QIEIEI costs more and offers the exact same basic screw-cap design made from ABS material. The only difference I can see is that the QIEIEI is heavier at 1.06 ounces compared to the EXCBIOZ at 0.893 ounces. I would save the money and buy the EXCBIOZ instead.
Will the Haofy 3-in-1 valve fit my Intex or Coleman air mattress?
It might, but you need to measure first. The Haofy is designed to fit a hole with a diameter of approximately 4.28 cm, so check your existing valve opening with a ruler. It is compatible with “certain branded inflatable airbeds” according to the specs, but not all brands — so measure twice before ordering.
Can I use these replacement caps for pool floats and boats, or just air mattresses?
Yes, both the EXCBIOZ and QIEIEI caps work for inflatable pools, boats, and other inflatables. The product data for both specifically mentions they are suitable for indoor and outdoor use, including commercial settings like pools. Just make sure your float has a screw-type valve, and you are good to go.
Which one is more durable: the EXCBIOZ ABS cap or the Haofy premium plastic valve?
Both are made from sturdy plastic, but they serve different purposes. The EXCBIOZ is a simple cap made from ABS material that resists wear and cracking from repeated screwing. The Haofy is a full valve body made from “premium plastic” that needs to be installed permanently. For longevity on a cap, I trust the EXCBIOZ’s ABS build more.
Do these replacement caps come with a warranty or return policy?
The EXCBIOZ and QIEIEI both fall under Amazon’s standard 30-Day Return Guarantee, so you can send them back if they do not fit. The Haofy listing does not mention a specific return policy, but it is sold through Amazon so the same general return rules likely apply. Always check the product page before buying.
My Final Verdict
After testing all three, my clear winner is the EXCBIOZ Leakproof Replacement Screw Valves. It is the lightest at just 0.893 ounces, made from durable ABS material, and does exactly what a replacement cap should — keep your air mattress sealed tight without any fuss. The Haofy 3-in-1 valve is the runner-up, but only if your entire valve base is broken and you have a 4.28 cm hole to fill.
If you are on the fence, ask yourself one question: is your original screw cap missing or cracked? If yes, grab the EXCBIOZ and be done. If the whole valve is busted, go with the Haofy. The QIEIEI offers the same thing as the EXCBIOZ for more money, so I would skip it.
Best Overall: EXCBIOZ Leakproof Replacement Screw Valves
- Ensures a excellent and leakproof experience with our Inflatable Valves...
- Accuracy engineered for a great fit, our replacement caps make maintenance...
- Suitable for both indoor and outdoor use, these screw valves is essential for...
For anyone who just needs a simple, leakproof screw cap that weighs only 0.893 ounces and is built to last. This is the one I would buy again.
Runner-Up: Haofy Air Mattress Replacement, 3 in 1 Air Valve
- Premium and Durability: Constructed with Premium plastic material, this 3 in...
- Leak-Proof Design for Hassle- Use: Featuring a high secure air system and a...
- Specification and Compatibility Made Easy: Designed to fit into a hole with a...
Best for those with a completely broken valve who need a full replacement that fits a 4.28 cm diameter hole. A solid option for a specific problem.
Third Place: QIEIEI Inflatable Mattress Screw Valves Replacement Caps
- Ensures a excellent and leakproof with our Inflatable Valves Replacement...
- Crafted from sturdy ABS Compent,this valves caps set boasts superior wear...
- Suitable for homeowners looking to extend the life of their inflatable...
A perfectly fine cap at 1.06 ounces, but it costs more than the EXCBIOZ with no added benefits. Only buy this if the EXCBIOZ is unavailable.
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