Swathmasters Get the most out of your gate box with the Swathmaster. 20033 Left Hand Wing Extension 3ft 20034 Right Hand Wing Extension 3ft 20183 Center Section for 41″ Swathmaster 22363 Center Section for Swathmaster 54594 & 54596 54401 £0.00 54499 £0.00 54594 Swathmaster for 38″ Gate Box with 10″ Gate Door, 7ft Wings £0.00 54597 £0.00