I have two hoses I bought at Wal-Mart that were labeled "Drinking Water Safe". I don't use them for my aquariums, but I guess they would be pretty safe. I have seen both yellow and blue versions. They sell for around $10 US (50 feet). Richard Hostler Copywriter PC Connection IT Solutions for Business rhostler at pcconnection_com Phone: 603-423-2234 www.pcconnection.com