OEM Quadra-Fire Universal Vacuum Switch. Includes hose - SRV7000-531

Quadrafire Universal Vacuum Switch for all Quadra-Fire stoves. Replaces part #s SRV7000-531,SRV7000-166, 7000-824, 7000-624, 7000-166, 812-3430, 812-1990, SRV7000-447. All QuadraFire, and Heatilator Eco-Choice PS35, PS50, and CAB50. Includes hose.

The trip point is 0.05 WC = Inches of water, inches water column (inch wc or just wc)