Water Self Priming Foot Water Pump for Wash Basin sink RV Toilet Yacht Bilge suitable for 1/2" flexible hose Diameter of Rubber: 3-1/2" Product Dimension: 5" (L) x 2-7/8" (H) x 4" (W) Screw Holes Distance (Center-to-center): 2-1/4" (L) x 3-5/8" (W) Compatible with 1/2" flexible hose Maximum output: 8 liters / 2.11 gallons per minute This foot-operated manual pump is constructed from rubber and nylon, designed for ease of use and simple installation.Its compact size allows for convenient setup in confined spaces.The pump is suitable for applications in wash basins, sinks, RVs, toilets, yachts, and bilge areas.It provides a water-pumping solution without the need for electricity.Lightweight and portable, it is easy to carry and store when not in use.