Positive pressure ISE1 ZSE1 Vacuum Wiring specifications Piping specifications Grommet type (Lead wire: 0.6 m) Nil 00 For mounting on ZM ejector Single mounting R 1/8 Note 2) Grommet type (Lead wire: 3 m) 01 L Single mounting NPTF 1/8 Note 2) T1 Connector type (Lead wire: 0.6 m) C Connector type (Lead wire: 3 m) Note 2) Single mounting style: M5 x 0.8 (female) threaded.