It is used to neutralize waste odors in recirculating toilets and doesn't have formaldehyde. It has 2 ounce powder foil packets and consists 6 treatments per box. Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks Extra wear protection helps prevent future engine wear Anti-oxidants help prevent oil breakdown preventing engine-clogging sludge and deposit formation MODEL NO - VM30621