The Cleveland Controls DDP-109-186 is a professional-grade dual pressure switch engineered for high-precision air pressure sensing in HVAC and energy management systems

the Series 26 is the primary replacement for the obsolete Series 1 modules

The White-Rodgers 90-372 Relay is a specialized 120V SPDT heavy-duty enclosed relay designed for high-demand HVAC switching and power control applications

supervising burner ignition sequences

Smith 100110777 LP Gas Thermostat is a critical OEM replacement component engineered for high-performance propane-fired water heaters and boilers

Maxitrol R9110-2042 Spring L99H008 The Cleveland Controls DDP-109-186 isThe Maxitrol R9110 2042 is a high pressure black spring designed specifically for field conversion and precise pressure management within Maxitrol 210E and 325 9 series gas regulators. This heavy duty spring allows for a discharge pressure range of 20" to 42" w. c., making it essential for commercial and industrial applications requiring elevated manifold pressures. When performing a regulator spring replacement, it is critical to ensure the internal