at 75°F (mid-point of the hardware range)

professional-grade installation every time

20 inch WC switch is the direct performance successor to legacy part numbers 024-27631-000

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

the Trane VAL8215 is sold as the valve body only

Lochinvar & A.O. Smith 100289438 Gasket R-407A at 75°F (mid-point of theAs 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