The RELN Series 450 Pit Base is a heavy-duty commercial surface-water pit engineered to collect and channel stormwater across driveways, car parks and trafficable areas. Made in Australia from tough, UV-stabilised recycled plastic, it forms the base of a complete RELN Series 450 pit — pair it with your choice of RELN Series 450 grate (AS 3996 Class A or B, sold separately). Key Features Australian made — 100% UV-stabilised recycled plastic for durable, environmentally friendly performance. Heavy-duty commercial — built for driveways, car parks and trafficable areas. Interchangeable grates — accepts RELN Series 450 grates in AS 3996 Class A or Class B (sold separately). Lock-down security — optional lock-down grate kits available to secure the grate in place. Specifications Product Code 001109 External Size (L×W×D) 562 × 562 × 506 mm Internal Size (L×W×D) 450 × 450 × 450 mm Weight 6.5 kg Load Rating Base only — grate rated Class A/B Material UV-stabilised recycled plastic Where to Use Ideal for commercial and heavy-duty surface-water drainage in driveways, car parks, paths and trafficable areas. Connects to standard stormwater pipe to carry collected water to the point of discharge.