Spa Foam Down Concentrated foam suppressant designed for hot water applications. This non-oily foam suppressant is effective in any type of sanitized water. Add directly to the foaming area using approximately 1 2-ounce at a time. Leisure Time Spa Foam Down is compatible with chlorine bromine ozone and biguanide sanitizers. Features . Stops and retards foaming. Compatible with chlorine bromine ozone and biguanide sanitizers. Foam Down Concentrated foam suppresant. Pint. Dimension - 2.5 x 2.5 x 8 in.