This double check valve prevents the back flow of water, protecting your equipment from water damage.
The patented designed check valve has a screw lock mechanism - this means that rather than pushing tubing onto the check valve, it's screw locked making it very secure. Tubing cannot pop off. As a result we are recommending this product to be used with the Easy Aqua Super Atomisers in particular (see related products below).
Can be used with any CO2 systems and also suitable for air pumps.