Then we compared our results with any non-GMO-related claims. Find a list of all the products we tested in our full report. Genetically modified corn and soy are used in a wide variety of foods. Nearly all of the samples we tested of the products that did not make any non-GMO-related claim on the package did, in fact, contain substantial amounts of genetically modified corn or soy.
Below are the types of water filtration media stocked and distributed by Nalco PTS: 1  Anthracite Filter Coal, AnthrafiltÂ® is commonly used as sub-fill and as a component of multi-media filters. 2  Filter Sand and Gravel is also called Torpedo Sand/Coarse Sand/Support Gravel/Filter Gravel/Pea Gravel.
Some filters use more than one filtration method. An example of this is a multi-barrier system. Jug filters can be used for small quantities of drinking water. Some kettles have built-in filters, primarily to reduce limescale buildup.hese filters are usually small, portable and lightweight (1-2 pounds/0.5-1.0 kg or less), and usually filter water by working a mechanical hand pump, although some use a siphon drip system to force water through while others are built into water bottles.