DURABLE MATERIAL: This mini float valve is made of high quality PVC (polyvinyl chloride) for corrosion resistance GREAT DESIGN: Rubber washer ensures a leak-proof and leak-free kit; Adjustable arm with over 180 degrees of adjustment range; The PVC screw for adjustable arm prevents rust and oxidation VERSATILE: Works great for waterer, humidifier, fountain, aquarium, pond, chicken/dog/horse/cattle waterer, etc. EASY TO USE & COMPACT SIZE: 1/2" NPT male threaded inlet, simply hook it onto the end of a hose. Nice and lazy solution Note: The data are all manually measured, please allow 1-3cm error. Due to differences in light and display, there may be some color differences, please refer to the actual item received.