The Merit PGHA Series Hydraulic Application pressure gauge is designed for pressure measurement in hydraulic equipment and systems where vibration, pulsation and

pressure cycling are common. Available in 2.5" and 4" dial sizes with bottom or center back connections. Standard thread size is 1/4" NPT on the 2.5" dial, 1/4" NPT for ranges below 1,000 psi and 1/2" NPT for ranges of 1,000 psi and higher on the 4" dial gauges. Note that 1/2" NPT is available on the 4" dial gauges for ranges below 1,000 psi upon request.