Feature
High-quality rubber
Low resistance
Non-leakageaQU
Consistent quanlity
Good seal
Resistant materials.

Description
To prevent air pump from damage of suddenly stop caused water back flow in aquarium, when air pump placed lower than aquarium water surface.
Aquarium check valve used with different air pumps.

Packaging & Delivery
1)Packaging detail: 100 pieces/ polybag;
2)Dilivery detail: 5-7days upon receipt of 50% deposit, depends on the quantity of the order.