10Pcs Check Valve PP Single Way Non Return Flows Control Reducing Diameter Set Kit for Aquarium

Better Designs: Comes with different diameters at both ends, the hose fitting enables better control for stable flows. Great Material: Adopting high quality PP material without odour or impurities, has excellent durability for use. Practical Uses: Allows for wide application on various places, including but not limited to aquarium, fish , etc. Item Type: Check Valve Material: PP Function: For connecting the hose to prevent the backflow of gas or liquid. Scope of Application: For fish , food and beverage, medice equipment, chemical industry.