Fits 3″ x 4″ corrugated pipe, 3″ & 4″ S/D pipe and 4″ SDR35 pipe. Offset allows for adjusting inlet height, Adapters fit 9×9, 12×12, 18×18, 24×24 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.
The NDS® catch basins, grates and adapters we offer are commercial grade – not the budget ones you find at your local big box hardware store.