US Warehouse - FREE FAST Shipping in USA Product Description: Never deal with a messy liquid again! The #1 portion control product around the world. The pre-packaged water-soluble packet controls odors, breaks down waste and paper, and lubricates valves and seals. Just drop it in! Unbeatable odor prevention Pre-packaged portion control- no spills Breaks down waste and paper Number 1 portion contol deodorizer in the world Formaldehyde free Non-staining color Deodorizes and breaks down waste and paper Best-selling Holding Tank Deodorizer Worldwide Porta-Pak is not only Walex's best-selling holding tank product, but also the top-selling deodorizer worldwide. Unbeatable odor prevention Formaldehyde free Non-staining color Deodorizes and breaks down waste and paper. Easy to Use Simply add one Porta-Pak into the toilet holding tank by flushing of direct add. The entire packet dissolves. We suggest adding 1.25 gallons of water for every 10 gallons of holding tank. One Porta-Pak controls odor and treats waste in a holding tank up to a capacity of 40 gallons. Excellent for cassette and portable toilets. Effective in treating grey wastewater. Available in three fragrances Porta-Pak is available in three fragrances: Clean Linen, Fresh Scent, and Lavender. Scent Fresh Item Form Liquid Item Dimensions 1.55 x 1.09 x 0.46 inches Unit Count 10.0 Count Thank You for Shopping!