Check the listing for details. 40003 RV Water Fill Adapter with Hose for Quick Filling of Your RV's Water Tank. Condition: New. Listed at 8.99 USD. Leisure Coachworks RV Water Tank Filler with Shutoff Valve and 5/8" Tube (4003) Quickly and Efficiently Helps Fill Your Water Tank Free Shipping Ships Same or Next Business Day Quickly and efficiently fill your water tank. Leisure Coachworks rv water tank filler with shutoff valve aides in reducing the time to fill up your water tank and eliminates backflow. With the clear flexible large 5/8-inch fill tube, see as you fill your camper, trailer or rv water tank. Quarter turn shutoff valve gives you the opportunity to control the water flow. ---Leisure Coachworks rv water tank filler with shutoff valve aides in reducing the time to fill up your water tank and eliminates backflow. ---Quickly and efficiently fill your water tank. ---With the clear flexible large 5/8-inch fill tube, see as you fill your camper, trailer or rv water tank.