Wika 2.5 type 111.11p 100 psi/kg/cm2 gauge – 1/4 npt cbm plastic wika type 111.11pm gauges are designed for 2 u-clamp panel mounting. They feature a black abs case and low friction swiss movement to insure a long, reliable service life. The 111.11pm design fits into 2 u.s. Size panel cut-outs. Refrigeration scale available (as shown) for hvac applications. specifications: connection location: center back mount wetted parts: brass copper alloy case material: abs plastic case filling: standard window type: removable twist-off window construction: polycarbonate