Stainless Steel Flip Top Deck Fill - Gas - 2" Hose Flip Top Hose Gas Fill is constructed of investment cast 316 stainless steel. Installs with four #10 FH fasteners (not included). USCG regulations require bonding wire to prevent sparking. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.