Walex CMDOBK Commando Black Holding Tank Cleaner - 40 Pack

Treats your black holding tank system with an all-natural enzyme cleaning treatment in as little as 12 hours Effective waste digestion and sludge removal Easy to use dissolvable packet Septic-tank safe Formaldehyde-free Walex CMDOBK Commando Black Holding Tank Cleaner - 40 Pack SKU : 1222.223 UPC : 742693500404