Auburn E9-251 BOOT-PK Boot R-134A screws should be hand-tightened or

screws should be hand-tightened or torqued to 20 +/- 3 in-lbs until the gasket is fully compressed

eliminating the mounting and calibration headaches common with universal aftermarket switches

Its construction is built to withstand the rigorous duty cycles typical of commercial and industrial heating environments

this direct replacement control board ensures precise flame sensing and safety lockout protocols

Auburn E9-251 BOOT-PK Boot R-134A screws should be hand-tightened orThe Auburn E9 251 BOOT PK is a high performance angle silicone boot designed specifically for industrial ignition systems and electrode protection. As a 10 pack bundle, this E9 251 BOOT PK serves as the direct replacement for the standard E9 251, providing superior electrical insulation and moisture resistance for HVACR and furnace applications. Engineered from durable high temperature silicone, these boots maintain flexibility and integrity under