Using the “Patented” Reflective Foil Hot Water Tanks Heater Jacket stops 97% of Radiant Heat loss! Heating the Water in your Hot Water Tank at home is the second largest energy consumption next to Heating and Cooling Air. Your Hot Water Tank continues to work even when you are at work, sleep or on holidays. As the water cools down due to the loss of heat, your Hot Water tank starts up again to maintain a desired temperature. The cost savings using a Hot Water Heater “Reflective-Foil Jacket” are immediate and also helps prolong the life of your Hot Water Tank. The Patented “Reflective Foil” is 3/16” thick which has a single layer of polyethylene bubbles sandwiched between two highly reflective surfaces. It is specifically designed to reduce the amount of radiant heat transfer. NOTE: This product is exclusively made and Tested for JR Global Sales 'Only' and anyone else selling this product is NOT authorized to do so and is sending another product that may NOT have been ‘Tested’ and may not be ‘Fire Rated’. If the product is NOT sold by JR Global Sales than it is NOT the same product that is being offered here. If the product is 'Sold Out' and not in stock by JR Global Sales than replenishment stock is on its way. Thank you Also available in our 50-60 Gallon Kit, https://www.amazon.com/dp/B00Z7NNXNQ The Reflective Foil used in this Kit is Commercial Grade. It has been certified and tested to not give off dangerous toxins when heated. It is also Fire Rated. This is not your typical Reflective Foil you would buy in your local Hardware Store. Buyer beware. Sold only by JR Global Sales