The 320mm Solid Top Poly Inspection Manhole Cover and Frame is a lightweight, durable access solution engineered for shallow domestic drainage systems, garden inspection chambers, and landscape utility points. Featuring a circular 320mm clear opening and a streamlined, low-profile design, this solid top cover provides a clean and secure barrier over minor sub-surface chambers where vehicular loading is not a factor.
 
Manufactured from high-grade, UV-stabilized polypropylene or structural-grade polymer, this assembly offers exceptional resistance to corrosion, chemical exposure, and weathering, ensuring it will not rust or degrade over time like traditional metal alternatives. While designed primarily for pedestrian areas and green spaces, its tough structural molding provides reliable load distribution for standard garden and foot-traffic environments.
 
Engineered for quick and effortless installation by contractors or DIY landscapers, the lightweight plastic construction allows for easy manual handling, positioning, and removal during routine maintenance checks. Whether you are finishing a residential landscaping project, routing garden drainage, or sealing a small utility inspection point, this trade-quality polymer manhole cover delivers a cost-effective, low-maintenance, and weather-resistant finish.
 
SOLID TOP COVER & FRAME
Application:
Domestic driveways
Loading:
3.5 Tonne - 35kN
Lifting Key:
N/A
Product Features
Cover
Solid top. Black polypropylene.
Frame
Square frame with circular opening. Black polypropylene.
Locking
4 screw.
Multi-Directional
Can be rotated to fit in with the pattern of the surface finish.
Adjustable Clear Opening
Cutaway sections allow fitment to different diameter chambers.
External Dimensions:
438 (L) x 438 (W) x 37 (H)
Clear Opening:
220 > 300