CSA-approved Model 220 is available with pressure-containing elements in aluminum or Type 316 stainless steel. Differential pressure ranges from 0-5 to 0-100 psi, with safe working pressure up to 4,000 psi. Various elastomers accommodate most media configurations. Gauge/switch carries 5 yr warranty and is certified in Class I, Div I Group C/D and Class II, Div I Group E/F/G.