Deep Yoga Mat Cleanser for use  on the Manduka GRP and all apen-cel yoga mats.. Refresh and renew your mat with our Deep Yoga Mat Cleanser. Specifically made for the Manduka GRP and all open-cell yoga mats, this cleanser will take your mat back to square one, just like it\'s fresh out the box.. A deep cleansing is recommended to remove all buildup and extend the life of your GRP mat.. Features-. 16.9 oz. (500 ml).. Use & Care. Fill cap with approximately 1 oz of cleanser and add to 1 gallon of water in a bathtub. Soak mat 5-10 minutes in solution, periodically moving mat around.. Rinse mat thoroughly with fresh water, squeeze out excess water and hang to dry for 24 hours.. Depending upon frequency of use, do a deep cleanse 2 to 4 times per month.. For a quick daily clean, use with our everyday Yoga Mat Cleanser to prevent buildup and extend the life of your mat.