

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.
🔧 Keep your compressor in check — flow forward, never back!
The Hromee In Tank Check Valve Kit is a robust brass check valve designed to prevent backflow in air compressor systems. Rated for a maximum pressure of 450 PSI and airflow of 20 SCFM, it features a 1/2" MNPT tank connection and a 1/8" FNPT side port for pressure switch compatibility. Equipped with stainless steel springs and fluoropolymer poppets, this valve ensures positive sealing and long-term durability. The kit includes two types of unloader fittings (barbed and push-to-fit) for versatile installation and can be disassembled for easy maintenance. Ideal for replacing worn check valves on various air compressor brands, it offers professional-grade performance with a 30-day return policy.






















| ASIN | B07MHGPT63 |
| Best Sellers Rank | #70,337 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #200 in Air-Compressor Accessories |
| Brand | Hromee |
| Brand Name | Hromee |
| Connector Type | Barb, Push to Fit |
| Customer Reviews | 4.5 out of 5 stars 1,089 Reviews |
| Exterior Finish | Brass , Stainless Steel |
| Item Dimensions | 4 x 4.6 x 1 inches |
| Item Weight | 4.64 ounces |
| Item dimensions L x W x H | 4 x 4.6 x 1 inches |
| Manufacturer | Hromee |
| Material | Brass |
| Material Type | Brass |
| Maximum Operating Pressure | 450 Pound per Square Inch |
| Maximum Pressure | 450 Pound per Square Inch |
| Model Number | HR4011 |
| Number of Pieces | 4 |
| Number of Ports | 2 |
| Outlet Connection Type | MNPT |
| Size | 1/2 inch |
| Thread Size | 1/2 inch |
| Thread Type | NPT |
| Unit Count | 1 Count |
| Valve Type | Check Valve |
V**G
Everything you need. Great price
Worked great. Very solid kit
E**S
Was An Exact Replacement for my Compressor
I purchased this to use on my Campbell Hausfeld compressor which I bought used. The one that came with it was not unloading properly causing the compressor to struggle with restarting under pressure. That has been resolved with this valve. I was a bit surprised it did not come with the nut and compression for where the 1/2" line goes into the top of the valve. But it was not in the picture so can't really complain about it. After the installation it was leaking around the top connection since there was no brass compression ring. I had to buy one at the hardware, which was not a huge deal, to stop the leak - which it did. Just something to be aware of if you are planning to pick one of these up. Other than that, it went together smooth and resolved my compressor restart issues as expected. I can totally recommend this valve for others needing to replace one of this size. It's well made and comes with two fittings (minus the top nut and compression ring) and all threads have sealant making the installation pretty straight forward.
E**S
Perfect Fit
Functions as deigned. I measured closely and it matched the one I replaced perfectly.
M**Y
Good Replacement For Craftsman Check Valve
I had acquired a Craftsman 25 gallon air compressor several years ago, but never used it, so it basically sat in my shed for years until I recently decided to get it up and running. I knew I needed to put in some fresh oil and check the main parts, including the check valve. When I took the old one out, it was somewhat corroded but still in working order, but I wanted to replace it with a new one just to be safe. Lo and behold, the exact replacement piece was no longer available. That's when I searched around and found this one, Hromee Air Compressor Replacement Components Brass 1/2 Inch MNPT Compressor in Tank Check Valve Kit . While the dimensions were slightly different (this one was slightly longer), it fit the tank perfectly and was a good replacement part. From what I can tell, the compressor is working perfectly and I have a brand new compressor for my shop. I would say just measure carefully and compare the old one to the new one as best as you can before ordering, because I actually had ordered another one first and top compression inlet was the wrong size so I had to send that one back. I would recommend this kit for replacing your check valve.
T**E
fits
fits great right one for my 60 gallon kobalt
M**O
Que fue llegar y enroscarlo
Las especificaciones de roscas están bien 1/2 para el tanque 11/16 para el tubo que viene del compresor 1/8 para el tubo que va al interruptor
R**L
as advertised
perfect fit, works as it should
V**D
Why,, ??
Anyone who has ever worked on shop air compressors knows how much fun they are to have working with no problems.. Air is a BIG DEAL For me and for most shops. So when this valve is not working properly from the factory it usually doesn’t get any better with just replacing it. Oh heck no, usually the compression fitting is on its last seal and all the parts that need to be removed is just a pain in the ass. Now the supply line has kinked and leaking and it’s a special kind of part too. Ahh the endless fun with low quality parts from Amazon again…
Trustpilot
2 months ago
2 weeks ago