Chemical Resistance: The exclusive compounded polyethylene formulation provides superior resistance to corrosion and environmental degradation

the CK-41F provides the necessary draft proving functionality required by code to prevent backdrafting and ensure proper flue gas evacuation in residential and light commercial atmospheric gas applications

the unit is equipped with a 1/8" NPT pressure tap and comes complete with a Q340 thermocouple and a natural to LP conversion kit

The open construction design facilitates straightforward direct mount installation via a 1/4 inch SAE female flare nut

Reznor 41700 Duct Stat Refrigerant Chemical Resistance: The exclusive compoundedThe Reznor 41700 Duct Stat is a specialized replacement HVAC control designed for precise temperature regulation in commercial duct furnaces and unit heaters. This mechanical duct thermostat, traditionally cross referenced as the Honeywell T678A1054 or T678A1015, utilizes a remote liquid filled sensing bulb to monitor discharge air temperatures. For technicians servicing Reznor XE, X, or RPV series units, this two stage controller is essential for