Features: Make from PA nylon, with excellent wear resistance and impacts resistance, ensuring the stability and durability of the product in long terms use. Fully automatic water levels controlling technology is adopted to accurately senses water levels changes to ensuring the efficient operate of the water supply systems. Widely used at water tanks, reservoirs, fish tanks and other places where water levels monitoring is required, suitable for home decoration and industrial use. Easy to install and can be completed without complex tools. The universals adjustment function is suitable for installation of various water tower with different angles. Specifications: Component: PA Nylon Type Option: 3/4inch, 1inch, 1.2inch, 1.5inch, 2inch Size: As Shown in the Picture Package Includes: 1set Float switches note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.