This range of recessed covers are designed to be in-filled with a screed or concrete and are available in a range of clear opening sizes and feature four locking screws and rubber neoprene seals as standard. The standard tray depth is a nominal 40mm unless otherwise indicated. Ideal for indoor use these unobtrusive access covers can be in-filled with screed, tiles & other floor surfaces. The frame and cover are galvanised to BS EN ISO 1461.