The largest single-bottle format in the Star Brite Odor Away line: a 2-quart (64-ounce) biodegradable holding tank treatment with natural nitrate compounds for odour control and waste reduction. Formaldehyde-free and fragrance-free for safe use in all RV and marine holding tanks, even for chemically sensitive users. Each 4-ounce dose treats 40 gallons, providing 16 full treatments per bottle.

• Biological formula, formaldehyde-free
• Natural nitrate compounds
• One 2-quart (64-ounce) bottle
• 4-ounce dose treats 40 gallons
• Unscented, fragrance-free