DMS1B3/6045/K Safeseal B125 manhole cover 600mm x 450mm clear opening with 75mm frame depth Specification Knowledge base Stock code Range Clear opening (mm) Overall frame (mm) Frame depth (mm) Options My Wrekin DMS1B3/6045/K Safeseal 600 x 450 710 x 560 75 Options Screw locking Neoprene seal Integral badging Safety grille Ventilation holes Flood and odour control plate Quantity Decrease quantity Increase quantity Reset quantity Download Features Indexed corners ensure correct orientation first time, every time. Indexed corners ensure correct orientation first time, every time. Labyrinth seal helps to prevent odour escapes and water ingress. Labyrinth seal helps to prevent odour escapes and water ingress. Safety keyway prevents accidental disengagement of the lifting key during the handling process. Safety keyway prevents accidental disengagement of the lifting key during the handling process. 70+ PSRV tested at top surface of chequer by UKAS accredited 3rd party. 70+ PSRV tested at top surface of chequer by UKAS accredited 3rd party. Designed with tapered sides and centralised lifting points to allow the cover to slide out of the frame. Designed with tapered sides and centralised lifting points to allow the cover to slide out of the frame. Images