5Pcs Aquarium Fish Tank Plastic Non Return Check Valve One Way Air Pumps Filter

Features: 100 Brand new and high quality Great one way check valve for aquarium air pump. Durable and easy to install. Fit standard aquarium air pipe of 4mm inner diameter. Material: Plastic Color: Transparent white Package includes: 5 x One Way Check Valve Note: 1.Please allow 0.1-0.5 inch differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, the item`s color might be slightly different from the pictures. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.