The 7590U-10 adapter must be used to connect to the 7590U and7591U Chek-Lok. This insures a proper connection to open the check mechanism. A built-in nylon gasket provides a gas tight seal.
RegO 7590U-10 Features:
- Connections: 1.5/8″ UNF × 3/4″ F.NPT.
- Compatibility: Chek-Lok 7590U / 7591U
