Push-to-connect cross connectors available in acetal are used to join tubing of polyethylene, brass, or copper. Sizes range from 3/8 inch OD size only. Gray or white acetal are NSF and FDA-approved and have Buna seals for use in air, gases, and potable water applications. Also available with double O-ring EPDM seals. For other options see our PUCX series push-ins.