Nasa Tech Heavy Duty Reflective Foam Core Non Fiberglass (Fits 40, 50, and 60) Gallon Water Heater Tank Insulation Wrap &hellip; Save Money, Energy and Help the Environment!!! SAVE 2x MORE WITH OUR PRODUCT!!! Reflective Foam Core Insulation!!! R-VALUE 7.5!!! Reduce Heat Loss by 40% !!! Recover Your Investment in a few month!!! Fits All 40 to 60 Gallon Tanks / Fits Gas or Electric Water Heater Easy to Install and Easy to Clean , Contains no Fiberglass, Non toxic / Non carcinogenic Made in USA