Adapters with Female pipe threads and a Flair-It connection. 3/8" and 1/2" fittings will fit PEX or polybutylene tubing. 3/4" fittings will fit PEX tubing only, to use on polybutylene see Related Items.
1G Blue New Work Box
3/8FLx3/8FIP Connector
3/4x3/4MPT PEX Adapter
2-9/16 Self Feed Bit Milwaukee