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ThermoFlo™ Back Draft Dampers are designed to allow airflow in only one direction and can be installed in any position. They are manufactured with aluminum back draft damper blades and a heavy duty spring for improved performance. 20-gauge steel housing and exterior foam gaskets also ensure a tight seal. They are easy to install and have minimum air leakage. Specifically designed to be used with ThermoFlo flexible ducting.
Interior threads which accept 3/4 in standard pipe thread. Use as ebb and flow fittings and bulkhead fittings. Increased versatility: thread PVC pipe fittings into bulkhead fittings - ideal for use in aeroponic and drip applications.
