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.
Detachable design makes it easier for you to clean and repair. Unscrew to open it.
Air Hole Diameter: 0.16' / 4 mm, Overall Size: 1.7' x 0.6' / 4.3 x 1.5 cm (L* D), Net Weight: 4 g.
Package Content: 6 Pcs Air Check Valve, 100% Money Back Guarantee if they don't work.

Technical Details

Product Details

Package Dimensions
Width : 3.11 inch
Height : 0.59 inch
Length : 5 inch

Shipping Weight: 0.8 ounce (View shipping rates and policies)

ASIN : B06X989Y9B