The check valve will not be listed as a Atwood part, it is on the outlet of the hot water line and just a inline check valve with threads on both sides. You may need to find the back of the water heater to see how it is piped.
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Andersen Ultimate 3220
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