O-ring 7173016 ( 1.109 I.D. x 1.387 O.D.) - sold individually, or in pack FOUR ( 4 ) Required for use inside the Larger version 1" By Pass Valve 7214383
O-ring 7173016 ( 1.109 I.D. x 1.387 O.D.) - sold individually,,Or in Pack of FOUR ( 4 ) as Required for use inside the Larger version 1" By Pass Valve 7214383, WS15X10026. These go on the by pass stem ( sliding shaft ). If you want 4, then be sure to select quantity of 4
