TOPP offers quality sewage basins, sump basins, and wastewater basins made of fiberglass and polyethylene that provide answers for both budget and performance.
A proven leader in sewage, sump, and wastewater markets, TOPP provides high-quality environmentally responsible products, including fiberglass, polyethylene, and structural foam basins, tanks, basin, and tank covers, lift stations, septic tank risers, extensions, and accessories.
18″ through 120″ inside diameters.
All lengths available depends upon the current depth of your wet well. Sealing kit available to seal the basin and extension gasket material and hardware
All covers fit with no extra accessories needed.
With extensions available in 18”, 24”, 30”, 36”, 42”, 48”, 60”, 72”, 96″ and 120″.