Walex Porta-Pak Holding Tank Deodorizer | Lavender Breeze, 10 Drop-Ins

Drop one packet in the black tank and it goes to work knocking down odor and breaking down waste and paper so sensors read true and clogs don't start.

The tabs dissolve on contact — no measuring, no mess — and this pack carries a fresh lavender scent.

• Controls black-tank odor
• Breaks down waste and toilet paper
• Drop-in tabs dissolve instantly — no mess
• Works in 2.5 to 40 gallon tanks
• Lavender scent, 10-pack