Mount your RotopaX fuel or water tank to virtually any vehicle surface—no drilling, no permanent hardware. The SeaSucker RotopaX Tank Holder - 5 Gallon is powered by three 210 lb-rated 6” vacuum mounts, giving you serious holding power that installs and removes in seconds. Compatible with any RotopaX tank up to 5 gallons. Note: RotopaX tank not included — purchase diesel, gasoline, or water tanks separately. Choose your configuration: Just the Mount — the SeaSucker vacuum mount platform only Mount + Hardware — includes the RotopaX DLX Pack Mount for superior container mountability Mount + Hardware + Extension — adds an anodized aluminum extension for stacking 1, 2, or 2.5 gallon tanks