The HMT ECONO-FLEX™ Secondary Seal is one of the most economical and effective types of secondary seals available. Easily installed and maintained, the HMT ECONO-FLEX Secondary Seal was designed under the guidance of the stringent gap specifications for secondary seals from governmental regulatory agencies throughout the U.S., including Northern California’s BAAQMD and its “zero-gap” requirements.
For a secondary seal that is custom-designed to fit specific tank round anomalies, has exceptional gap sealing ability, allows for in-service installation and has a long service life, choose the ECONO-FLEX™ Secondary Seal.