Aquarium oxygen pump special single-direction check valve\One-way valve\Check valve,

Manufacturer Direct, Quality Guarantee

This product measures 35mm in length.

Diameter: 5mm, 18mm, 5mm

【Usage】
1. When the oxygen pump is used to charge the oxygen, the sudden stop of the work causes the pressure difference inside and outside to cause the reverse flow of water, damaging the oxygen pump and causing the water in the tank to overflow, resulting in property losses.

2. Check valve, preventing water from entering the air pump, is an indispensable accessory for the air pump.

Note: The side with the OUT mark is the exhaust, and the other side is the intake.

 Baby information and picture introduction: (Our product pictures are all taken by ourselves).