3-1/2" Water Gauge, 0-300 PSI/0-2000 kPa (UL & FM Approved)

The Trerice SGXD300 is a 3-1/2" water-service sprinkler gauge offering dual-scale readout in both PSI and kPa, making it ideal for projects requiring metric and imperial measurement. The inner scale displays 0-300 PSI and the outer scale shows 0-2000 kPa for convenient cross-referencing. Designed for wet-pipe fire protection systems, the gauge is constructed with a black polycarbonate case and window, an aluminum white-background dial, and a 1/4" NPT lower male connection. Wetted parts consist of a bronze Bourdon tube and brass socket. Accuracy meets ASME B40.100 Grade B (3-2-3%) and the dial includes a zero zone indicator. UL-listed (UL-393, US & Canada) and FM Approved (Approval Standard 2311) for fire protection service.

• UL-listed (UL-393, US & Canada) and FM Approved (Standard 2311)
• Water service for wet-pipe sprinkler systems
• Dual scale: 0-300 PSI (inner) / 0-2000 kPa (outer)
• 3-1/2" dial with white aluminum face, black and red graduations
• 3-2-3% accuracy per ASME B40.100 Grade B
• 1/4" NPT lower male connection
• Black polycarbonate case and window
• Bronze Bourdon tube with brass socket wetted parts
• Zero zone indicator on dial
• Maximum operating temperature: 150F (65C)