Bio-Pak deodorizing packets are the result of the Walex R&D Group's extensive research into discovering new, highly effective natural enzymes to control odor and liquefy waste. Bio-Pak starts working immediately to control odor and break down solids in the waste tank. It also quickly liquefies paper, eliminating the need for special toilet paper. Bio-Pak is completely safe for the environment and septic tanks. The Bio-Pak portion-control system is easy to use with no messy liquids to spill. Continued use ensures that sensors, pipes, valves and seals will be trouble-free. Bio Pak Green