Sani-Loo^® Holding Tanks are roto-moulded as one piece standard sizes. Refer to the links below for a choice of 50 different standard sizes.

Custom-made tanks to suit your vessel can also be fabricated from high quality polyethylene.

A Sani-Loo^® Level Control Switch (HTLS) is recommended. When used with the Sani-Loo^® Control Box, it will automatically shut down the toilet when the holding tank is full, preventing sewage from being pumped out the vent.