HRX 426 QX		HRX 476 QX		HRX 537 HX		HRD 536 QX		HRH 536 QX
Cutting width	17" / 42 cm		19" / 47 cm		21" / 53 cm		21" / 53 cm		21" / 53 cm
5.5 hp engine	x		x				x		x
6.5 hp engine					x
Alloy deck							x
HD alloy deck									x
Polymer deck	x		x
Xenoy deck					x
60 litre bag	x
73 litre bag			x
83 litre bag							x		x
88 litre bag					x
Hydrostatic					x
Versamow					x
Roto-stop	x		x		x		x		x
Central height adj	x		x		x		x
Rear roller	x		x				x		x