professional-grade installation every time

Check your existing switch for the part number 1NT21L-2163 or THT2436

Pair it with compatible Belimo actuators for seamless integration and superior system control

As a manual reset limit switch (Therm-O-Disc Style 60T15

eliminating the drift associated with aftermarket alternatives

Lochinvar & A.O. Smith 100289438 Gasket R-407A professional-grade installation every timeAs a field technician, you know that maintaininig a gas tight seal on high efficiency equipment is non negotiable. The Lochinvar & A. O. Smith 100289438 Gasket Set is a critical OEM replacement kit designed specifically for the WH110 series and related commercial heating systems. This comprehensive kit includes high durability componentsincluding boiler gaskets and O ringsengineered to withstand the intense thermal cycling and chemical exposure