Recessed Manhole Cover – Square-To-Round 450 mm (CD450SR / CD450SR/46SL)

The CD 450SR (or sealed version CD 450SR/46SL) is a recessed, galvanised steel manhole cover and frame intended for internal drainage or landscaped areas. Its square-to-round design allows it to integrate neatly over a 450 mm diameter opening while offering a square external frame for finishing. 

Key Features & Specifications:

✔ Applications: Internal drainage, Pedestrian & landscaping (light duty) 

✔ Loading Capacity: 5 Tonne Gross Plated Weight 

✔ Cover Type: Recessed for tiling, screeding or block paving infill 

✔ Material: Galvanised steel cover & recycled polypropylene frame 

✔ Lifting Keys / Handles: Integral lifting handles, tested to 60 kg direct lift 

✔ Sealing: Factory-fitted neoprene gasket to reduce odour ingress (for sealed version) 

Dimensions:

• Internal / Clear Opening: 450 mm diameter  
• External (frame): 580 mm × 580 mm × depth 88 mm (for deeper version)  
• Alternative shallow version (46SL): depth ~ 54 mm  

A practical, sealed recessed cover option for light duty internal or landscaping installations.