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Raypak 017977F is a copper tube bundle replacement for Raypak ASME 406A and 407A heaters. The kit is ASME compliant and intended for units manufactured from December 2019 onward, serving as a replacement heat exchanger for pool, spa, and hydronic boiler applications. The assembly includes copper tubes, gaskets, internal baffles, bolts, and mounting hardware to allow a full swap without sourcing additional components.
Copper ASME tube bundle replacement kit for Raypak 406A/407A heaters; includes gaskets and mounting hardware for full heat exchanger replacement.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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