The Zonefirst ZD-8X8 is a professional-grade 8" x 8" parallel blade zone damper designed for precision airflow management in forced-air systems

The 1/4" NPT male pressure fitting provides a secure

typically adapted for brazed piping in commercial circuits

this specific kit is configured for natural gas applications

Integrated Safety: Features built-in thermal overload protection to shield the motor from overheating due to restricted airflow or voltage fluctuations

York SK083C Seal Kit 320720-756 The Zonefirst ZD-8X8 is aThe York SK083C Seal Kit is a critical service component designed specifically for the maintenance and overhaul of York centrifugal chiller compressors. This kit is the direct field replacement for York 025 42378 000, providing all necessary O rings, gaskets, and sealing elements required to restore pressure integrity and prevent refrigerant loss. Engineered for compatibility with high pressure systems using R 134a or R 123, the SK083C ensures a