Increase the capacity of existing stormwater pits with this 450mm square riser, providing an additional 300mm of depth without replacing the pit. Moulded from UV stabilised polypropylene, it offers excellent impact resistance and weather durability. The riser is lightweight for easy handling, with an interlocking design to ensure a snug, reliable fit. Suitable for domestic, commercial and landscaping drainage applications, it helps achieve correct grate heights and cover levels while maintaining structural integrity and flow performance.

• Adds 300mm depth to 450mm square pits,Lightweight yet durable polypropylene construction,UV stabilised for long-term outdoor performance,Interlocking fit for fast, secure installation,Ideal for residential and commercial drainage

$109.74

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