Blue Gold® Approved O2 Cleaner w. Rust Inhibitor 1 gal. bottle\r\n(3.75 litres) in plastic bottle. Non-toxic and biodegradeable.\r\n\r\nThere has been some misunderstanding within the diving industry \r\nregarding appropriate Oxygen-cleaning agents. A common dishwashing\r\n liquid or general purpose household cleaner may not be simply \r\nsubstituted for an approved cleaner. There are many excellent cleaner\r\n / degreaser products available. Some will remove grease and oil but \r\nnot paraffins, waxes or lacquers. Some work well on steel \r\n(hydrochloric acid-based products) but react adversely with aluminum\r\n and brass. Others work well on brass and copper but poorly on steel\r\n (sodium carbonate-based products). Merely observing that a detergent\r\n apparently works well is not enough. Only the product’s manufacturer\r\n can specify if the product is approved for Oxygen-cleaning purposes \r\nand which materials it may contact.\r\n\r\nBlue Gold Cleaner is approved for our specific purposes of regulator,\r\ncylinder and valve cleaning for high-pressure Oxygen service.\r\n