Thetford 70246 Sanicon Tank Buddy Direct with 21' Retractable Hose Sani-Con hooks up to RV's sewer connection - and it's powerful pump transfers waste quickly; The easiest, cleanest, most convenient way to empty a holding tank; For use where permanent installation isn't possible Convenient carrying case included; Used 20-amp portable battery (not included); Includes power leads with battery clamps, fused switch and bayonet cap The easiest, cleanest, most convenient way to empty a holding tank;