When working with 3/8" stem valves

What do I do if I lose the key

Precision Fit: Engineered specifically for Heil Quaker 1013080 applications to ensure zero-clearance sealing

Plug-and-Play Compatibility: Ships with standard 1/4-inch spade connector for immediate integration into existing furnace wiring harnesses

Accurate Diagnostics: Large viewing ports allow for immediate identification of flash gas or bubbles in the liquid line

Robertshaw 11-202 Scale Inhibitor When working with 3/8" stemThe Robertshaw 11 202 is a professional grade Carbon Plus Scale Inhibitor designed for high demand commercial water systems. Engineered to protect critical components in commercial ice machines, beverage dispensers, and evaporative coolers, this compact disposable filter utilizes a dual action media to mitigate mineral accumulation. By actively preventing calcium carbonate scale and magnesium deposits from bonding to evaporator plates and internal