At-a-Glance Monitoring: High-contrast 7-digit display and an integrated orange dial provide immediate confirmation of system operation

Safety Compliance: Critical HVAC safety switch prevents burner operation under poor venting conditions

The internal check valves allow for bidirectional flow without the need for external piping

port orifice alignment and venturi dimensions are brand-specific

Common Questions: Is this kit compatible with my specific Armstrong pump series

Lovejoy 68514435359 Sleeve 324846-701 At-a-Glance Monitoring: High-contrast 7-digit displayThe Lovejoy 68514435359 Sleeve, also known as the 4JE SLEEVE, is a one piece solid S Flex coupling insert engineered for high performance power transmission in HVACR and industrial motor to pump applications. Molded from high grade EPDM rubber, this sleeve is specifically designed to handle a torque rating of 120 in lb while maintaining structural integrity at speeds up to 7,600 RPM. The 4JE design utilizes pre molded teeth that engage directly with