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                        20 lb propane tank on aluminum bracket. Proper APROVED GAS BULKHEAD CONNETOR AND HOSES ARE REQUIRED. You cant cheep out here. Hydraulic fittings have a different flare angle than gas fittings and hoses will not seal in gas. They are made for fluids. Propane is safe as long as you play by the rules.   Note: squared off rudder with slight bulbus end. This mod took the slight chatter out of the tiller at higher speeds.