Additional Details ------------------------------ Product description: 40 Gallon Water Heater Jacket >>>Come with Step by Step Instructions >>>Easy to Install >>>East cut-to-fit >>>Fits Gas or Electric Units >>>Contains no Fiberglass >>>Increases R Value and efficiency of water heater >>>Comes with plenty of military grade aluminum tape Water Heater Wrap, Water Heater Energy Saving & Hot Water Heating Loss Prevention Save Money, Energy and Help the Environment Reduce 9% Heating Cost Bills, Reduce Heat Loss Up to 40% Fire rated Class 1 / Class A, Non Toxic, will not irritate skin, eyes or throat Improve the efficiency of 95% of all water heaters in use today Easy to Install and Easy to Clean Fits Gas or Electric Water Heater Contains no Fiberglass Recover Your Investment in a few month Prolongs the life of your Water Heater Non toxic / Non carcinogenic Material: Fiberglass