Aqua-Kem Shotz - 24 Toss-Ins Holding Tank Deodorant - Garden MistFeatures:The ultimate in convenience! Simply toss 'em into the tank. These water-soluble packets dissolve fast to deliver great deodorizing power and cleaning action.Powerful odor control & superior waste digestionLiquefies waste fast to prevent clogs100% biodegradableThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.