438mm x 438mm Square to Round 220mm to 300mm Dia

• Clear-opening = 220 – 300 dia
• Overall size = 438 x 438
• Depth, frame = 37 Depth, overall = 97
• Weight (kgs): 4.0
• Load Rating Classification: 35kN (Domestic driveway)
• Load Test Data: 35kN held for 30 secs
• Features: – Square-to-round design, perfect partner for CD U353 base and CD U355 chamber risers
• Unique stepped spigot/reducer also allows fitment to most other major manufacturer’s 220-300 dia chamber risers
• Corrosion-proof polypropylene cover and frame
• Can be rotated to match direction of paving
• Quick and easy to install
• Ideal for tarmac, grass or gravel areas
• Eliminates the need to cut paving around a circular opening
• Unique slip-resistant surface tread pattern
• Supplied with 4 locking screws
• Made from recycled material