The Polydrain 450mm square plastic cover and frame is designed for use with underground inspection chamber systems, providing a strong and practical access cover for driveway and light-duty applications. Manufactured from polypropylene, it offers a durable, corrosion-resistant solution for protecting chamber openings while maintaining access for inspection and maintenance.
This cover and frame is quick and easy to install and is ideal for paved areas. It also features an enhanced slip-resistant tread pattern, includes four locking screws and four blanking plugs, and comes complete with a built-in restrictor ring providing 350mm access.
Key Benefits
• Durable polypropylene construction
• 35kN loading capability
• Built-in restrictor ring with 350mm access
• Internal fit into R450 chamber riser
• Enhanced slip-resistant tread pattern
• Complete with four locking screws
• Includes four blanking plugs
• Ideal for paved areas
Specifications
• Brand: Polydrain
• Product type: Square plastic cover and frame
• Product code: SCF45035
• Overall size: 552mm x 552mm
• Clear opening: 445mm diameter
• Frame depth: 73mm
• Overall depth: 125mm
• Material: Polypropylene
• Colour: Black
• Weight: 6.3kg
• Load rating: 35kN
Applications
Suitable for use as an access cover on underground inspection chamber systems in driveway and other light-duty paved areas. Ideal where a strong, lightweight, and corrosion-resistant chamber cover is required.