Aerospace Components Swivel Filler Necks

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Allows you to rotate the outlet in any direction. Fill your cooling system at it's highest point by eliminating trapped air in the system. Fits SB & BB-Chevy and accepts standard radiator cap (not included). Includes a 1/8'' NPT orifice for overflow catch can. Choice of 1-1/4'', 1-1/2'', or 1-3/4'' outlet fitting.