MAGNESOL® Filter Envelopes are 36 x 63cm non woven filter pads made of Magnesol, which is a type of magnetic mineral used for cleaning frying oil. 100 envelopes supplied per carton by The Good Oil Guys Pty. Ltd. One pad is designed to be used in Lowboy Filter machines and other oil Filtration systems. It works by trapping particles and contaminants in the oil as it passes through the pad, thus purifying the oil. The MAGNESOL® material has been proven to be effective at removing impurities from oil and thus providing superior filtration performance. MAGNESOL® doubles the life of your fry oil and saves 50% of cooking oil costs.