Is the differential on the A19AGC-42 adjustable

Zero Effusion: Internal copper construction ensures refrigerant stays contained without environmental leakage

Space-Saving Design: Bracket-less

The baseplate utilizes high-quality low-voltage 5mm terminals that accept 14–24 AWG solid or stranded copper wire

Watts 0274934 Valve Els PW 17895 Is the differential on theThe Watts 0274934, also identified as the Watts 174A 1 30, is a high capacity 1 inch ASME pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. Engineered with a heavy duty bronze body and a stainless steel spring, this valve provides critical overpressure protection for equipment rated up to 1,005,000 BTU hr. The 174A series is the industry standard for contractors requiring a 30 PSI relief setting