It utilizes a Style B mounting bracket

the DDP-109-187 utilizes a silicone diaphragm and snap-acting switches rated for 300 VA pilot duty at 115-277 VAC

Field-Proven Reliability: Includes a 21D64-2 nitride ignitor kit for superior durability compared to standard silicon carbide ignitors

The precision-machined Spirax-Sarco replacement parts within this kit provide a high-tolerance fit

Critical for maintaining proper system sequencing in commercial RTUs and residential heat pumps

Spence MP-POS Regulators R-410A It utilizes a Style BThe Spence MP POS 760P MoorePos is a critical pneumatic positioner designed for high performance steam and fluid control. As an external pilot operated unit, this lever operated regulator provides a versatile 1 2 to 2 inch stroke length, ensuring precision in demanding industrial environments. For contractors managing commercial HVAC systems, the 760P model is the industry standard for maintaining stable delivery pressure under fluctuating load