Tetra CV 4 Check Valve

Product meeting expectations. Good value for money. Installed at the outlet of the dosing pumps. Perfectly fulfill their anti return function. Very satisfied

Does its job. I put it right out of the aquarium, the pump is in the lower part of the cabinet and it leaked if I put it out of the pump.

very well even if i denote on antisyphon yne loss of efficiency of air pumps

works very well, no return of water in my bubbler, very satisfied with my purchase.

Conform to the photo of the site. Well done are role. Set at a distance to protect the pump area

Material that fulfills its role well. Installed to replace a very old product.