Securely sealed SafeSeal™ C250 manhole covers Our range of single-seal BS EN 124:2015 C250 Group 3 manhole covers have been designed to combine high strength and light weight and include additional features such as a single seal labyrinth and safety enhancements. View products Features 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. 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. Square or rectangular manhole covers Stock code Range Overall frame (A x B) Clear opening (C x D) Frame depth (E) Base opening (F x G) Datasheet My Wrekin DMS1C3/4545/K Safeseal 550 mm x 550 mm 450 mm x 450 mm 75 mm 490 mm x 490 mm Download Add to quote DMS1C3/6045/K Safeseal 710 mm x 560 mm 600 mm x 450 mm 75 mm 650 mm x 500 mm Download Add to quote DMS1C3/6060/K Safeseal 710 mm x 710 mm 600 mm x 600 mm 75 mm 650 mm x 650 mm Download Add to quote DMS1C3/7560/K Safeseal 860 mm x 710 mm 750 mm x 600 mm 75 mm 800 mm x 650 mm Download Add to quote DMS1C3/9060/K Safeseal 1,010 mm x 710 mm 900 mm x 600 mm 75 mm 950 mm x 650 mm Download Add to quote