The Eco-Lock Series is designed for application where ISO Class 5 thru 9 performance is required and the budget will not allow the Klean-Lock Series. Having met this challenge this series is designed to give the triple gasketed construction needed for all clean spaces. Each housing is completely factory sealed using the best in materials and sealants to restrict the penetration of contaminants into the cleanroom. Unlike ordinary wet location troffers, the EL-Series is designed to give a permanent seal to the plenum space. Available recessed or surface mount versions.