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The POLYLOK 3009-NG Riser is a 20-inch round component designed for septic systems, combining features of concrete and plastic risers. This HDPE riser maintains its shape, is stackable, and screws together to form a watertight and airtight seal. Its structural ribs prevent frost adhesion, making it suitable for frost-prone areas and ensuring easy septic access to grade.
Durable HDPE septic riser offering watertight sealing, frost protection, and easy access.
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