The 042N4230 is the updated version of the 042N4221

System Safety: Restores factory-spec static pressure readings to ensure reliable operation of the furnace pressure switch

Durable Molded Design: The solid block filter drier construction eliminates desiccant attrition

such as starting a pump or signaling a DDC controller

Modine 3H0346700003 Conversion Kit 320788-703 The 042N4230 is the updatedThe Modine 3H0346700003 Conversion Kit is a specialized OEM solution designed for field converting unit heaters from natural gas to liquid propane (LP). As a direct equivalent to Modine 28045, this kit is engineered for precision compatibility with Modine PD50 and BD50 model series. For technicians managing fuel transitions, this high grade LP conversion kit ensures the manifold pressure and orifice sizing align with manufacturer specifications for