For a reliable field installation

The Maxitrol TD121B Temperature Selector is a critical component for Selectra Series 21 and 31 electronic gas flame modulation systems

It features thermal delay logic with a timing profile of 1–20 seconds "On" and 40–110 seconds "Off

Proper balance is factory-verified to reduce bearing wear on the blower motor

Emerson Alco 053003 Filter Drier Els PW 29614 For a reliable field installationThe Emerson Alco 053003 (Model STAS 487T) is a heavy duty liquid line filter drier designed for high capacity commercial refrigeration and air conditioning systems. This take apart shell features a 7 8" sweat (ODF) copper connection and a 48 cubic inch internal volume, optimized for CFC, HCFC, and HFC refrigerants, including R 410A, R 22, and R 404A. Built with a sturdy steel shell and a corrosion resistant epoxy powder paint finish, it is rated for a