- Great one way check valve for aquarium and fish tank.
- Protect you air pump by preventing aquarium water from back siphoning during a power outage.
- Made of durable clear plastic. Net weight: 0.14 oz / 4 g. Please use a paperclip to poke it from Input side to Ouput side when the outlet inside gets stuck.
- Air Hole Diameter: 0.15" / 4 mm; Overall Size: 2.1" x 0.58" / 5.3 x 1.5 cm (L*Max.D)
Price is for 1 item