This specific model with plated brass trim is rated for water and glycol only

the piston is machined with five longitudinal grooves parallel to its length

Always replace a manual reset limit with the specified York S1-025-35397-000 to maintain UL listing and equipment safety protocols

Is this compatible with newer Marley or Berko heater models

York S1-1NP0681 Conversion Kit mario This specific model with platedWhen converting York modulating furnaces from natural gas to liquid propane, the York S1 1NP0681 Conversion Kit is the essential OEM component for ensuring precise manifold pressure and safe combustion. Specifically engineered for use with the White Rodgers 36J27 gas valve, this kit allows technicians to maintain the high efficiency modulating performance of the heating system while transitioning to a different fuel source. By utilizing the correct LP