Merit's PG Series general purpose gauges are available in 1.5", 2", 2.5" and 4" dial sizes and are designed for all applications suitable for lead-free brass internal gauges not subject to extreme vibration. Designed to be both durable and economical, each gauge is manufactured with a steel case,  polycarbonate lens with black steel ring on 1.5", 2" and 2.5" dial sizes and plated steel ring on 4" dial size, aluminum dial and pointer. 1.5" dial gauge have 3%-2%-3% accuracy while all other dial sizes come standard with 1.5" full scale accuracy.  Available in 1/8" or 1/4" NPT, BSP or BSPT bottom or center back connections. All PG Series gauges come standard with SWDA compliant low-lead brass internals. Optional case, internals, lens and ring materials are available upon request (note: subject to minimum order requirements).