John Guest Stem Reducer 3/8 X 1/4 PI061208S

John Guest connectors

Have purchased several of these to set up my RO and then again to run the water from the RO to my refrigerator for cold water and ice maker. They are very easy to use, just push the tubing into the hole and they lock in place. The connectors have never leaked a drop and I feel more confident that they will never leak than some of the connectors you purchase in hardware stores. Highly recommend John Guest connectors.

John guest fitting

Worked Perfectly!