http://www.p8ntonline.com/product.asp?P_ID=246&strPageHistory=search&strKeyw ords=co2&numPageStartPosition=1&strSearchCriteria= any&PT_ID=allhttp://www.p8ntonline.com/product.as...ch&strKeywords =co2&numPageStartPosition=1&strSearchCriteria=any& PT_ID=all

This bottle has HSE approval.