Wika 10 type 211.11 300 psi/bar gauge – 1/2 npt lm steel wikatype 2×1.11 10 pressure gauges are ideal for boiler room service or other applications where its large dial size makes it easier to read from a distance. These gauges feature a black-painted steel case and a 1.0% accuracy. specifications: connection location: lower mount wetted parts: brass copper alloy case material: black steel case filling: standard window type: removable window construction: instrument glass