Here is the link to the adapter that I used. I have also started using a metal flexible hose. So far it works fine. I just disconnect it and drain when it's freezing out.
post #96 in the thread below:
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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