T TANYA HARDWARE Pro High Flow Coupler & Plug Kit (6 Piece), V-Style, 1/4 in. NPT, Solid Brass Quick Connect Air Fittings Set

The OD of these fittings wear quickly in the locking groove mushrooming the locing boss making them hard to connect after about 50 reconnections.

These are great and I've installed them on all of my non-rotational, non-impact tools, including tire inflation chucks, paint guns, and air blower guns. They work great in those and, when used with a Milton V-style female connector, are leak-free.Milton, an industry leader for air connectors, recommends against the use of brass V-style plugs on air tools, writing "NOTE: The use of brass plugs with air tools will cause premature wear on the couplers and plugs." They also have this note next to the steel V-style plugs: "NOTE: Steel plugs are highly recommended for use with any kind of percussion tool such as impact tools, grinders, polishers, drills, etc."There are photos on the web documenting such wear both for brass plugs as well as for aluminum ones. So I have some steel plugs for use where brass is not recommended.

They work fine. Used these to convert my shop when I installed a rapid air system. I like the way you can push in the tool without having to pull back the collar.

I always bought the quick connectors from any of those big box stores and they always started to leak after awhile, you also needed a second hand to make or separate the connection from a wall unit. Than I found those, just push the male part into the coupler (no sleeve/ring to pull back). I disconnect push the ring/sleeve back and the male part pops out, both ways with on hand (wall mounted coupling). You can even fix them if they start leaking..... if. Before those I couldn't let my hose connected, the coupler started to leak after a few month from the weight of the hose. My hard piped system in my garage is absolutely airtight and now with the air hoses still connected no loss either. The longest time between using the air system was 3 weeks with an air pressure of 80psi all the time. With the old fittings my compressor started every 24 hrs.Best of all is the price, same price like the parts from the big box stores.

These are well machined brass air hose fittings. However, I gave four stars because of the time I wasted on the first coupler I tried. It leaked air badly and would sometimes release the air hose under pressure. On a whim, I tried another coupler from the same package. It worked smoothly with no leakage. Upon examination I found that the leaking coupler, the female with the sliding lock, was of a different design than the others in the package. The good couplers have two knurled rings on the release collar while the one that leaked has only one. It is a poor fit for the male connectors in the package. I assume this is because the faulty coupler was sourced from a different supplier. If you order this set, examine the female couplers and confirm that they have the double knurled rings.

I'm not someone who writes reviews 6 hours after using a product. I like to really use a product to get a good solid feel for it and make sure it is worth the time to write a review. Having said that, I ordered these fittings to replace all of my failing Milton quick connect fittings March 2020. I have had these for over a year now and I am still using the original pieces that I installed. Prior to this, I had to constantly replace the Milton fittings at least once every couple of months because they would leak after disconnecting tools. I am a heavy user of pneumatic tools and by no means gentle. These fittings are not leaking and are holding up very well. I will be ordering more with the expansion of my air system. If anything changes, I will update this review.

Replaced half a dozen hose ends in shop and am starting to have leak issues on some. Not a huge problem because we stock orings and they are repairable but they are obviously inferior quality to the ones we have used in the past. They are also 1/5 the cost so its understandable and acceptable.

Being at the third round of changing all air quick couplers in the workshop, these seem REALLY promising.They got everything right which has been an issue with the previous iterations of couplers here:> Brass bodyThe previous I had were a steel-aluminum mixture that would corrode internally.> 6 Retention ballsI had issues with other manufacturers that would leak when the coupler is pulled sideways. These hold tight.> High Air flow - larger internal diameter compared to other styles.That can have an impact on air chisels and other high flow tools.> Compatibility with other MFG.The type B plugs I have around do work with these V-style standard couplers.> One hand insertionNo need to pull the sleeve back for connecting.And then a fabulous price for 28 pieces of turned and knurled brass hardware.

V-Style connectors, compatible with Milton, and Topring/Prevo S1 Ultraflo. 1/4’’ NPT threading, solid construction, corrosion resistant brass, high flow, perfect kit with plenty of connectors to convert tools, hoses and compressor connections. Good value at 50$. Update: they seem to be leaking a small amount of air, system used to be sealed, tightened all new fittings, using teflon, still leaking… will investigate further and update.

Within a couple days the orings start blowing out of the female connectors.

I was really inpressed with the quality.Great price ...Thanks again.

Used them for about 3 days in a farm shop. In that time 3 male connectors snapped off when used on an air impact, and one female connector bent to the point of being unusable when dropped lightly. Im sure they would be fine for a light duty home garage setting but they do not last at all for what i need them for.