John Guest Speedfit 3/8 x 3/8 x 1/4 Inch Angle Stop Adapter Valve, Push to Connect Plastic Plumbing Fitting, ASVPP1LF

This is just what I needed. I also like that the middle (white) piece will swivel so the angle will line up perfectly. Installed in about 1 minute flat. Great product all around.

I rarely write review, but this one is just too good. No leak, installed it within 3 minutes even I am a rookie in water system. Now this thing sit nicely under my sink and I just connect the pipe from RO/DI when I need RO water for my aquarium.

Installed a new fridge with an ice maker and I needed to plumb in a waterline. Bought one of those plastic tube kits with the saddle valve and I didn’t like the idea of having to pierce the pipe. Started looking for an alternative. Saw this and figured what the heck it had good reviews and glad I did. Install took less than 5 minutes. Just Took off the cold line that ran up to the sink, put in this valve and tighten the nuts down. Just stuff the 1/4” waterline in the hole and it automatically cinches down with the shark fitting. Turned it on and all was good no leaks no nothing. I was amazed and it was done the right way without compromising my plumbing. Wife thought I was mr amazing handyman having it done so fast. Need a waterline, this is the valve to buy. Lead free.

My previous valve was twice the size and additional fittings (adapters). This just fits into the angle stop valve under the kitchen sink and the faucet host. This valve is also much easier to turn on and off.

Odd size but great adapter

My plumber said this piece saved the install of our water system

Used this to mount a Culligan undersink filter. So much easier and it IS NOT ALL PLASTIC !! The adapter that came with the filter was just not sturdy. This is what all filter mounts should come with. The brass to plastic connection is strong and provides peace of mimd. The 360 deg. mvmt. is a plus when installing in tight spots. Buy one !,

Glad to have this, it works great.

I used this after reading another review about it..... He was so right! This little adapter makes the job a lot easier and now I have a second shut off for just the under sink filter. It threads right on to the 3/8 faucet connection and then gives you a second shut off and connection point for another device, AND it swivels so you can turn it to the best angle! Worth every dollar. UPDATE, I have now used three of these! They are a great idea!

This value worked perfectly and made my job easier installing my water filtration system. Great product would defiantly recommend.