Key Benefits NSF Certified construction ensures compliance with health department standards for commercial food service

Broad Compatibility: Serves as a direct HVAC sequencer replacement for most major OEM furnace and heat pump brands

If you are troubleshooting a furnace short cycling issue or a lockout condition where the burner ignition fails after a few seconds

Integrating this replacement valve seat into your maintenance routine helps sustain the equal percentage or linear flow characteristics required for stable modulating control in hydronic systems and steam applications

Robertshaw 5500-136 Infinite Switch Key Benefits NSF Certified constructionThe Robertshaw 5500 136 Infinite Switch is a vintage spec, 120V electrical control designed for precise proportional power regulation in resistive heating applications. Engineered as a voltage sensing parallel circuit control, this 120V infinite switch is a direct replacement for INF 120 and VSI series components used in commercial and residential foodservice equipment. It features a push to turn (PTT) safety mechanism and a compact housing that