3/8x3/8x1/4 Water Line Splitter for Refrigerator,IceMaker,RO System Water Filter

So I wanted to connect a sprayer to the toilet bowl, unfortunately the typical connection wasn’t possible. Most sprayers or bidets connect to the base of the toilet tank using the 7/8” toilet tank pump. My toilet at my apt is one of these where most of the tank plumbing is hidden and inaccessible because I have some “fancy toilet” I guess. After so much borrowing and multiple trips to the hardware store I had purchased several pieces needed to connect a simple sprayer. In the pic I posted with this review you can see all the other parts needed in order to connect a sprayer or bidet. In total I had spend around $50 in parts. I’m the other hand this small affordable valve I finally found on Amazon was able to achieve what I needed; to connect a sprayer and a regulator valve to the toilet plumbing. It took me less than 5 minutes to install this valve. It works perfectly and easy access to it. I can control the flow and turn it off when not in use of while not home. It is sturdy, well built, and seems durable. It also came with all the seals needed to prevent leaks. You will not find this valve at The Home Depot, Lowe’s, or Ace Hardware. I went to all those hardware stores and I wasn’t not able to find it or anything remotely similar. The only option they have is to spend lots of money and to purchase several parts and if doing so, you have much higher chances of having a leak. I definitely recommend this valve. Completely worth it!

Adapter does fit Toto perfectly. Used Teflon tape since it is metal to plastic but no leaks and threaded easily. Obviously, be careful not to cross thread. Part is machined well and high quality. I ended up using a different 3/8 tee without a stop valve and used the adapter from this item to connect my Toto s5 Washlet bidet to my water supply. This would also work well and is pretty much plug and play. I just wanted less weight and didn't need an extra stop valve.

I needed to attach a hose from my Genie Bidet to my plumbing, but unfortunately there was no access to the bottom of the toilet tank on my American Standard Town Square toilet so I could not use the very nice tee valve provided with the Genie Bidet. Unfortunately the big box hardware stores had no easy solution, but then I found this tee connection with valve and adapter which solved my plumbing dilemma. The build quality seems good enough and I was careful to ensure the rubber seals were properly in place and I did not cross thread or over tighten the fittings. No leaks from the get go and after a month, still no leaks. Without this tee adapter I don't see how I could have put a bidet on this particular toilet. Thanks Amazon for making it available!

Worked perfectly. My wife purchased another bidet toilet seat and this one came in with a Splitter that was not even close to the sizes needed. This seat utilizes a G 1/2” British hook up. With the expansion adapter, everything fit perfectly. It seems to be very durable also.

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.

Solid brass and well crafted Product. Perfect fit without neeeding a plumber for the water line to my fridge

This little valve is a live saver. I live in an apartment, so I can't turn off the water to replace the existing valve stop. 15 minutes to install, and we have a water filter online!

I’ve installed this several times, and each time I appreciate its quality and convenience. I particularly love the gasketed quick-connect feature, which eliminates the need to hardpipe a new shut-off valve. It’s made with high-quality materials and comes with a variety of fittings to help connect the water line. I’ll definitely be buying more to keep on hand for when I need it, as I am a plumber.