Solo 4200242-P 4200242-P Tank Cap with Valve Assembly Replacement tank cap, valve assembly and d ring One-Way valve assembly lets air in , but prevents liquid from leaking out Fits 425, 425-deluxe, 435, 473-p, 475-b, 475-b-deluxe, 473-d, 485, 425-dh and 475-b-hd Solo original equipment parts Made in the USA