For technicians upgrading older systems

stable switching to prevent arcing and premature wear

or differential air pressure through its dual 1/4" barbed connections

or QMark equipment

The York S1-025-27727-003 is a precision-engineered SPST Temperature Control designed for mission-critical monitoring in York and Johnson Controls HVAC systems

Belimo ZG-AFB Adaptor Kit Els PW 17895 For technicians upgrading older systemsThe Belimo ZG AFB Adaptor Kit is a specialized mounting accessory engineered for short shaft linkage applications, specifically designed to bridge the gap between AFB and NFB actuator series and existing damper hardware. This kit is essential for contractors performing retrofits or repairs where the standard actuator drive may not align with legacy crank arm setups. The hardware ensures high torque transmission without slippage, maintaining damper