All ActivityMost RecentMost LikesSolutionsRe: Spray attachment for Dometic ToiletI used Mfg Part #: 385319054, cost about $20. I just removed the old valve from the back of the toilet, and installed this one. Took about 15 mins. T'ing into the supply line before the foot valve would be nice for using the sprayer with the need of using the foot valve. Wish Id thought of that. :)