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. 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 Clear opening (mm) Overall frame (mm) Frame depth (mm) Options My Wrekin DMS1C3/4545/K Safeseal 450 x 450 550 x 550 75 Options Screw locking Neoprene seal Integral badging Ventilation holes Flood and odour control plate Safety grille Quantity Decrease quantity Increase quantity Reset quantity Download DMS1C3/6045/K Safeseal 600 x 450 710 x 560 75 Options Screw locking Neoprene seal Integral badging Ventilation holes Flood and odour control plate Safety grille Quantity Decrease quantity Increase quantity Reset quantity Download DMS1C3/6060/K Safeseal 600 x 600 710 x 710 75 Options Screw locking Neoprene seal Integral badging Ventilation holes Flood and odour control plate Safety grille Quantity Decrease quantity Increase quantity Reset quantity Download DMS1C3/7560/K Safeseal 750 x 600 860 x 710 75 Options Screw locking Neoprene seal Integral badging Ventilation holes Flood and odour control plate Safety grille Quantity Decrease quantity Increase quantity Reset quantity Download DMS1C3/9060/K Safeseal 900 x 600 1,010 x 710 75 Options Screw locking Neoprene seal Integral badging Ventilation holes Flood and odour control plate Safety grille Quantity Decrease quantity Increase quantity Reset quantity Download Available options Options Locking Neoprene seal Integral alternative industry-standard badging ('SW', 'FW' etc.) Ventilation holes Flood and Odour Control Plate Safety Grille View full details for available options and accessories Knowledge base articles Knowledge base article How manhole covers and gully grates are measured Learn how to accurately measure manhole covers and gully grates with our helpful guide. Knowledge base article Why do seal plates / flood & odour control plates (F&OCPs) have WiS leakage classifications? Understand why seal plates / flood & odour control plates (F&OCPs) have WiS leakage classifications? Knowledge base article Surface oxidation on iron castings Guidance on surface oxidation on iron castings, including what our covers are coated with and why we do this.