Tank Mat_Fits all sizes of MVE tanks _ 24 inches in diameter

The Tank Mat - keeps your tank off harmful cement and avoid scratches. Measures 24 inches in diameter to work with all size tanks. 3/16 inch thick.  See note from factory below.  It is important the tank is not placed directly on concrete, as moisture, minerals and abrasion from the concrete can corrode the aluminum outer shell of the tank.   NOTE FROM FACTORY ABOUT WHERE TO PUT YOUR TANK: "Tank users should avoid direct contact with concrete surfaces, by keeping their tanks on top of a wooden pallet, a carpet, etc. to avoid corrosion and pitting, that can cause vacuum leaks. This is due to the fact that the aluminum becomes a positive force, while the concrete a negative, which creates a physical phenomenon called “galvanic action”, corrosion and pitting, especially if water is also added. "  - Eddie Pastrana at MVEBIO