Sudbury 926 Bio-Tank 40 Holding Tank Treatment - 4 oz

Bio-Tank 40 Holding Tank Treatment - 4oz Features: • Non-Toxic • Bio-Tank 40 is safe and natural • Eliminates offensive odors • Specifically for your holding tank • Contains HT-40™ Directions: Mix 1oz of Bio-Tank 40 with one gallon of water for up to a 60 gallon tank (adjust dosage slightly to meet your specific need).