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

The Trerice SGXA300-A is a 3-1/2" sprinkler pressure gauge designed exclusively for air service, making it the ideal choice for dry-pipe and pre-action fire suppression systems. This single-scale gauge covers 0-300 PSI, providing reliable air pressure monitoring throughout a system's normal operating range. The gauge features a black polycarbonate case and window, an aluminum white-background dial with black and red graduations, and a 1/4" NPT lower male connection. Wetted parts are bronze Bourdon tube and brass socket for long-term durability in air service. Accuracy is 3-2-3% per ASME B40.100 Grade B. UL-listed (UL-393, US & Canada) and FM Approved (Approval Standard 2311) for fire protection service. A zero zone on the dial helps quickly identify system depressurization.

• UL-listed (UL-393, US & Canada) and FM Approved (Standard 2311)
• Air service only - for dry-pipe and pre-action sprinkler systems
• 3-1/2" dial with white aluminum face, black and red graduations
• Single PSI scale: 0-300 PSI
• 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)