For NDS® products.
Fits 3" x 4" corrugated pipe, 3" & 4" S/D pipe and 4" SDR35 pipe. Offset allows for adjusting inlet height, Adapters fit 9x9, 12x12, 18x18, 24x24 catch basins and all low profile series, CSA approved. for NDS® products. Also fits the NDS900 and NDS1200 series catch basins and the NDS1230 Low Profile catch basin.