Wika 2 5 Type 213 53 160 PSI Gauge - 1/4 NPT LM Stainless Steel WIKA Type 21X 53 gauges feature a stainless steel case for protection in harsh environments The o-ring seal around the connection makes this gauge field liquid fillable Wika 2.5 Type 213.53 160 PSI Gauge - 1/4 NPT LM Stainless Steel WIKA Type 21X.53 gauges feature a stainless steel case for protection in harsh environments. The o-ring seal around the connection makes this gauge field liquid fillable. When filled, the 213.53 is excellent for high vibration and pulsation applications. Specifications: Connection Location: Lower Mount Wetted Parts: Brass Copper Alloy Case Material: Stainless Steel Case Filling: Liquid Window Type: Standard Window Construction: Polycarbonate Compatibility U.S. Gauge: 535L, 545L, 546L, 555L, 556L, 559L Ashcroft: 3005HL