Corning® 33 mm Polyethylene Filling Cap with a Female MPC Polycarbonate with a 3/8 (9.5 mm) ID Coupling and a Male MPC Polycarbonate End Cap
Corning Life Sciences33mm polyethylene threaded cap Male MPC End Cap with a 3/8" (9.5mm) ID Female MPC Coupling Sterilized by gamma irradiation