NSF Lead Free Bronze Locking Expansion Connection

NSF approved Lead Free Bronze Locking Expander joint for AWWA water meter Proprietary security screw is locked or unlocked only with a proprietary access key Expansion Connection attaches to the meter together. Material: All brass conforms to AWWA Standard C800 NS NO. C83600 - 85-5-5-5) All bronze conforms C89833 Size: 5/8'',5/8'X3/4'',1'' EPDM gasket Connection: NPT thread We also can produce them according to customers' drawing and standard.