Pentair Technical Products has added four new 18-inch deep models to its line of Hoffman two-door, floor-mount Type 4 enclosures. Featuring a UL Type 4 rating, these enclosures are ideal for use in indoor or outdoor environments where it is necessary to protect controls and instrumentation from wet, potentially corrosive environments. A4L3 enclosures utilize the Hoffman Powerglide Handle with three-point latching for secure closure. The latching system provides sufficient compression to meet UL Type 4 requirements without the use of quarter-turn latching, offering security as well as easy and quick access, the company explains. Additional features of A4L3 enclosures include a flange trough collar around the door opening to exclude liquids and contaminants, as well as a removable centre post that permits easy back panel installation.