f and l aluminum parts f&l heavy-duty tank holder – universal cylinder rack for freon, oxygen, nitrogen & co2 – secure tank holder bracket for industrial, medical & hvac use – rust-resistant aluminum (2 x 30 lbs oxy, acty) is up for auction in Industrial & Scientific. The current bid is $2.00, 99% below the $154.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.