Valterra P23507VP - RV Antifreeze Hand Pump KitEasily pump antifreeze into your RV's water lines during winterization with this hand pump. Connect hose to your RV's city water inlet and pump in from antifreeze container. Extension tube lets you reach the bottom of antifreeze containers. Features: Durable hand pump lets you pump antifreeze into your RV's plumbing during winterization Lead free construction won't contaminate your water lines Flexible hose connects pump to your RV's city water