Tight O- ring retainer prevents air leakage and resulting contamination
from leakage of mixed liquor solids into unit
Tight O- ring retainer prevents air leakage and resulting contamination from leakage of mixed liquor solids into unit *Easy to install and strong structure for modulus parts. *Easy to replace membrane. No special tools to need *Check valve designed avoid membrane hollow as air- on/ air- off operations such as SBR's, aerobic digesters and anoxic swing zones.