Raypak 800203B Header Gaskets Direct Fit Application: Sized for

Direct Fit Application: Sized for standard furnace pilot burners

The robust phenolic housing and 1/2" snap disc design prioritize long-term performance and reliability in high-cycle furnace applications

and 500 controllers

Always match the part number against your unit’s technical data plate to ensure electrical and mounting compatibility

critical for preventing heat exchanger fatigue and over-firing

Raypak 800203B Header Gaskets Direct Fit Application: Sized forMaintaining a leak free seal between the heat exchanger header and the manifold is critical for system pressure and thermal efficiency. The Raypak 800203B Header Gaskets are high temp rated components engineered specifically for a precise fit in residential pool heaters and commercial hydronic systems. These gaskets feature a 3 4 inch inside diameter and a high performance composition capable of withstanding the rigorous thermal cycling of gas pool