The UNGROUND EXTENSION RUE400 riser is used to extend and adjust the height of the inspection shaft on underground rainwater tanks. It is ideal for installations where you need to level the terrain or ensure comfortable service access.
It is made of high-quality, high-strength plastic resistant to mechanical loads, UV radiation, and extreme temperatures. The reinforced structure with horizontal ribbing ensures stability even after backfilling with soil.
Main benefits and features:
