3/8" Compression
Stiebel Eltron Mini 2.5 Commercial Electric Tankless Water Heater, Undersink,
The Mini 1/4inch Double Ended piece is a no-fuss solution for small jobs.
12PCS Brass 3/8 Inch Compression Caps, 3/8" Female Stop Valve Cap Fitting for...
What I love about Fieldpiece is how easy it is to swap out parts.