Handy, convenient individual dose pouches come in an easyto- use resealable bag. One pouch treats an entire tank. Dissolves instantly, eliminates odors on contact. Contains 15 treatments. Product Features Waste Holding Tank Treatment; TST (TM); Chemical Treatment Used To Break Down Waste and Tissue; Without Formaldehyde; With Deodorant; Original Scent; Treats 40 Gallon Holding Tank; Drop-INS Individual Dose Pouches; Bag of 15 Treatments; With English/ French Language Packaging Handy And Convenient Individual Dose Pouches Come In An Easy-To-Use Resealable Bag One Pouch Treats An Entire Tank Dissolves Instantly, Eliminates Odors On Contact Stops Odors Up To 7 Days. No Harmful Formaldehyde. 100 Percent Biodegradable