and Luxaire air handlers without the need for mounting bracket modifications

Durable Construction: Features a high-grade brass body and stainless steel internal components to resist corrosion and mechanical wear

Direct OEM Compatibility: Engineered as the official replacement for part numbers 5H71675 and ZC24A34-3-0145 to maintain factory performance standards

covering both the 12

OEM Reliability: Direct York replacement part ensures full compatibility with Source 1 equipment specifications

Maxitrol KR-4812 Seal Cap 321702-401 and Luxaire air handlers withoutThe Maxitrol KR 4812 is a precision engineered seal cap with gasket designed specifically for Maxitrol gas pressure regulators. This critical component ensures a gastight seal on the adjustment screw, maintaining consistent outlet pressure and preventing environmental contaminants from entering the regulator housing. Engineered for compatibility with RV47, RV48, RV52, and R500 series regulators, the KR 4812 provides a secure mechanical fit that meets