The premium 521 vs h variable speed 4 in 1 petrol mower from al ko is a top of the range mower with superior features and a high technical specification'. '.strtoupper('f')eaturing a honda gcvx170 engine with variable speed control. featuring a 20 inch 51cm cutting width and deep maxairflow steel cutter deck which improves grass collection and helps to reduce and blockages in the discharge channel. the 4 in 1 mowing function gives the user the option for either collection, rear discharge, side discharge and mulching'. '.strtoupper('g')rass cuttings can be collected into the easyclick 70 litre box with fill level indicator that lets the user know when it requires emptying'. '.strtoupper('r')ear discharge ejects the clippings to the rear of the machine, where they can be left to wilt back naturally'. '.strtoupper('s')ide discharge ejects the cuttings to the side of the mower, leaving them in neat rows as you mow'. '.strtoupper('m')ulching is particularly beneficial during hotter, drier conditions'. '.strtoupper('t')he grass clippings are reduced to tiny pieces which are then blown back onto the lawn where they virtually disappear'. '.strtoupper('t')hese tiny pieces then provide the lawn with additional moisture and nutrients, promoting healthier regrowth. 7 cutting height positions ranging through 30 80mm which can be selected with the simple spring assisted central lever'. '.strtoupper('s')tart with the top setting and work your way down for the best cut and finish for your lawn. features70 litre easy click rigid grass collector designed for optimum airflow improving the filling performance'. '.strtoupper('t')he collector can be re attached easier with a guide rail'. '.strtoupper('f')ill level indicator to alert the user when the collector is full.maxairflow steel deck a deeper cutter deck with larger discharge channel increases the airflow so the grass clippings can be thrown higher, right to the back of the grass box'. '.strtoupper('t')he box can then be filled to the top more effectively and the discharge channel doesn’t get blocked.variable speed control adapt the travelling speed of the mower for the most comfortable working pace.ergonomic handles with the controls at your fingertips.integrated front handle so the mower is easy to lift over obstacles.4inone function mow, collect, side discharge and mulchwide xxl rear wheels 280mm with double ball bearings ensure easy manoeuvrabilityspecificationsmodel premium 521 vs htype four wheeledlawn size up to 1,800m2blade type rotarycutting width 51cm 20 inchengine honda gcvx170displacement 167ccpower 3.2kw 2900rpmstarter recoildrive variable speed – 2.5 – 4.5 km hcutting deck maxairflow steelfuel petrolengine oil 4 stroke 0.6l bottle includedcutting height adjustment central, spring assisted levercutting heights 7 positions from 30 80mmcollector size 70lcollector type easyclick rigid with guide rail and fill indicatorhandles ergonomic cockpitcarry handle yesmulching yesside discharge yeswheel size 200 280mm, ball bearingsweight approximately 36.8kgwarranty manufacturer's 5 year for domestic use terms conditions apply