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.
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