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

No leaks it works as advertised

I went to two local hardware stores AND home depot. No one could figure out how to do this . My old contracting buddy on facebook sent me this link. Instead of HOURS, this literally took minutes. so easy. Love it1

Agree with the other positive reviews. This is a great valve and was easy to install with no leaks. I did not use any plumbers tape with this, just the appropriate compression threaded fittings and plastic pipe on the press fit fitting.

Good quality fitting, as usual with JG speedfit fittings. I used this to tap into my under-sink coldwater line to install a RO/DI system on my pex line. This will easily work on PEX and braided hose line, right after the cold water shut off valve going to your faucet. Far better quality than the cheap plastic pieces most home RO systems come with to tap into the cold water.

Much better than what was provided by whirlpool. Allowed me to split the cold water connection to the RO system and ability to shut it off during filter exchanges etc.

Used this adaptor valve to connect my existing Watts Premier RO-Pure to the new Moen kitchen faucet I had newly purchased. A well made product and easy to install. Highly recommended.

Excellent

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 !,

Worked perfectly to connect the refrigerator water/ice dispenser to the cold water supply under the sink. Description says no tools needed - of course you need tools. I needed a crescent wrench. Very easy to install - so happy I did my research and decided to take this on myself and not call the handyman - I would have been embarrassed, its so easy (granted, the copper piping was already in place). And so far its leak-free! (Its only been about 12 hours, but I did have to flush the system with 4 GALLONS of water, per the fridge instructions - oof.)

Got this for an under the sink water filter. With this, Ill be able to easily change my filter media with very little mess.