Many plants have strong odors, and HTG Supply knows how to keep those contained with our selection of odor-controlling gels and sprays. There are some smells you just don’t desire stinking up your household, and before the neighbors complain, get to dampening down your scents with…our selection of controllers. Just need a light odor correction? Ona Blocks and Gel are like air fresheners on steroids, locking in bad odors with a fresh scent on top. Shop today for odor supplies, only on HTG Supply.