Test out the new Pure Power Blue 2 in1 Drop In and see for yourself how easy it is to clean your toilet bowl and treat your waste tank with one simple to use product. Drop the packet into the bowl and watch the effervescence and citric acid go to work. Let it sit for 10 minutes before a quick swab and flush to treat the waste tank. The RV is now ready for odor free use. Pure Power Blues concentrated proprietary blend of bacteria and enzymes stop all odors and keep the tank clean too.• Bio/Chemical Type: Biological• Formaldehyde: No• Deodorant/ Scent: Lemon Scent• Tank Size: 640 Gallon• Unit Size: 32 Ounce• Unit Type: Bottle• Unit Quantity: Single• Packaging Language: English Liquefies All Waste & Toilet Paper Cleans Holding Tank Sensors & Probes Environmentally Friendly | Valterra Waste Holding Tank Treatment in Blue