Safe, effective and great smelling toilet holding tank fluid, which both sanitizes and deodorizes your waste holding tank for up to 14 days.
To help with dosing your toilet tanks One-Chem Holding Tank treatment features a handy measuring device on top of the bottle. Simply remove the bottle cap and squeeze the bottle, the fluid will flow into the measuring compartment helping to eliminate wasteful overdosing.

•  Formaldehyde free
• 25ml dose is enough to treat a waste tank up to 100L in capacity