The Series 410 Riser was made to increase the depth of the Series 410 Pit by 350mm. ?Risers are used so that pits are deep enough to intersect with pipelines that are deeper in the ground. The slope of the land has no effect on the need for a riser.
RELN Series 410 Heavy Duty Commercial Pits are the perfect surface water pits for commercial applications including driveways, carparks, and trafficable areas.
RELN have a complete range of sizes in square and environmental pits as well as extensive grate options to offer both DIYers and trade professionals a complete solution for directing water away from the home. All Heavy Duty Commercial pits have conventional security grates and a range of innovative features that make installation easy and flexible.
Measurement of the external perimeter.
Measurement of the internal perimeter.
RELN is the drainage brand you can be confident in trusting. Their products are durable, made to last and are designed and manufactured right here in Australia. RELN's focus is to deliver quality product, at the right place, and the right time. They continue to stay at the forefront of innovation, designing and manufacturing product ranges for surface water, ground water and black water applications, as well as a range of agriculture products.
Their philosophy is to produce product from 100% recycled plastic, and they are proud to say that they've been doing it for many years and will continuously do so.
They are a multi-award winning and quality-endorsed Australian company, known for designing and producing innovative quality plastic products for the Australian and international markets.