Resideo - Honeywell Home 391937 Combination Gas Control Conversion Kit

The Combination Gas Control Conversion Kit is the essential upgrade for converting natural gas to liquid propane on compatible Honeywell Home gas control valves. This Resideo kit delivers a reliable, 1-stage conversion that ensures consistent flame performance and safety when switching fuels.

Designed for use with V400, V800, VS821, and VS820 models, the kit supports a pressure regulator set point of 8 to 12 inch WC. It includes all necessary hardware — regulator spring, O-ring, adjustment screw, and cap screw — so installation is straightforward. Also known as the MROSCS Leaf Class Name Valve Conversion Kit, it delivers a complete natural-to-LP conversion solution with precision-control performance.

• Compatibility: V400, V800, VS821, VS820 gas control valves
• Conversion type: Natural to Liquid Propane (LP), 1-Stage
• Includes: Regulator spring, O-ring, adjustment screw, cap screw
• Pressure set point: 8–12 inch WC
• Model classification: MROSCS Leaf Class Name Valve Conversion Kit