Brass Angle Stop Add-A-Tee Valve, 3/8 x 3/8 x 1/4 Compression Tee Valve,Feed Water Adapter for Refrigerators, Ice maker, Reverse Osmosis,RO Water Filter Systems, 3 Way Diverter Water Line Splitter

Needed a supply splitter to add a bidet device to a customer's toilet line. Hadn't even considered using one with a stop until I stumbled across this one online. Perfect for the application! Easy install and even came with an icemaker line adapter, which I didn't need, of course, but it's a handy touch. Handsome presentation, quarter-turn valve, great product!

I decided to install an instant hot water dispenser in my kitchen. For this, I obviously needed to split from the cold water line which required this exact item - that includes its own shut off. Four really helpful tips that hopefully will help you: 1) get a splitter like this one with its own shut off valve. I’m pretty sure you can find these at larger big box stores, but I live in a small town with a small hardware store and was not able to find a splitter WITH its own shut off valve. **This is very important as being able to turn off and on the water to the instant without having to turn off the water to your kitchen faucet at the same time is really helpful. 2) Make sure to note the measurements of the input and output water lines. I chose this size splitter (3/8) based on the specifications of the waterline input to a Delta faucet that matched my kitchen faucet, shown in the photo. **The size is different for a standard faucet that typically comes with the Insinkerator hot water units. Double check! 3) because I noticed that the splitter easily unscrewed from the water lines if bumped when taking out or returning bottles of cleaning materials etc under the sink, I put some painters tape around each of the connections to be sure that the connections stay intact. Also, as you can see in one of my photos, I used a water sensing device at the lowest point in the cabinet, just in case one of the connections came loose. You can see that there are a lot of connections that could fail under the sink with the dishwasher connection, the sink, garbage disposal, and now the hot water dispenser. Better safe, than sorry. 4) final tip that helped me a lot, and also reinforces the importance of having a shut off valve like this one dedicated to the hot water dispenser: you can see in one of my photographs, that I have the valve partially opened. I found this managed the water pressure which was originally too high. The hot water faucet should have relatively low water pressure so it doesn’t splash when filling your cup. Partially closing the valve did the trick. Anyway… I hope this is helpful. The device is great and I would certainly buy it again. Good luck with your home projects - I think I’m going to make a cup of tea now :-)

Excellent t-valve. I used it to install a bidet - just added it to the existing angle stop so I didn't need to mess with turning off the water. Worked great.

It’s very good quality. It was very easy to install, and has been working great for some time. The female 3/8” connection comes with the washer in it.

I recently purchased this Brass Angle Stop Add-A-Tee Valve to install a countertop RO system in my kitchen without disrupting the existing faucet supply line. I’m not a plumber, but with a bit of DIY experience, I found the installation fairly straightforward. The build quality is solid—it’s made of brass, not cheap plastic like many other options out there, so it feels durable and long-lasting.The 3-way diverter worked exactly as described. I was able to maintain my 3/8" compression connection to the faucet while adding a second 1/4" line to feed the RO system. The threading was precise, and the compression fittings sealed well without leaks using just a little plumber's tape on the male threads for extra security.One minor issue: the valve handle is a bit small and stiff, especially when turning it on or off for the first time. Not a dealbreaker, but it took a little extra effort to operate, and I wish it had a more ergonomic grip. That said, once installed and adjusted, it has been working perfectly without needing any further tweaks.It’s great that it supports both 3/8" and 1/4" or 3/8" output sizes, giving flexibility depending on your water line or appliance setup—whether it’s a fridge, ice maker, or RO system.If you’re looking for a reliable and space-efficient way to split your cold water line, this is a great value and solid performer. Just be aware of the slightly tight valve control.Overall, very happy with it—4 stars.

Works great and solidly built. Was surprised to see it wasn't plastic.

Works great and exactly what I needed. Could not find anything like this at Home Depot or Ace. Thanks China. I hope Trump's tariffs do not stop you from sending me such great products.

Needed this part in order to install our Biobidet. Our situation was unique because the install was on a skirt toilet and it is challenging to access given the water intake behind the toilet (which the parts in the Biobidet box were designed to do). This item worked perfectly and gave us separate on/off 1/4 turn control on theBiobidet line. Seems to be of good quality.