Non-return damper EKO-S is intended to protect
ventilation openings from return air, rain and snow.
Non-return damper EKO-S is intended to protect ventilation openings from return air, rain and snow. EKO-S is used with Roof duct EKO-T or as non-return damper in wall and rectangular ducts. The Non-return damper EKO-S is available in two versions: Type 1 for exhaust air and Type 2 for supply air.