John Guest Part number: CI320814S 1/4" Pushfit x 1/2" tap adapter BSP Thread.
There's also an option to choose a CI321214S 3/8' x 1/2'' tap adapter BSP thread.
The most reliable and leak free connections you can buy.
Securely connects 1/4" or 3/8'' tubing to the adapter.
This is the basket Message
This is the basket Message