In-grade LED fixture enclosure is entirely made from stainless steel and has 3/8-inch (10mm) tempered glass walkover cover. Flow-through design allows some air circulation to keep fixture cool and maintain optimum life. Concrete pour version is available, coated with protective rubberized compound to protect stainless steel case from chemicals in concrete. Once installed, cover may be opened from above with screwdriver, for easy access to fixture. These enclosures must be installed on bed of gravel and in areas of good drainage, to prevent flooding. For use with Philips color kinetics C-splash fixtures, Philips color kinetics blast powercore fixtures and Philips color kinetics compact burst fixtures.