This mulch plug is suitable for the atco gt38h, mountfield mtf 98h and the mountfield 1538h '. '.strtoupper('m')ulching grass is a great feature'. '.strtoupper('i')t saves so much time and can make mowing the lawn more than 30% quicker as there is no need to keep going to the tip to empty clippings'. '.strtoupper('s')witching between collection or mulch modes is extremely simple and takes less than a minute'. '.strtoupper('t')o mulch, just remove the grass collector, insert the mulching plug into the discharge chute and replace the collector.  to return to collection, simply reverse the procedure'. '.strtoupper('m')ulching the grass allows the clippings to be recycled, improving the soil as they decompose forming a natural fertiliser high in potash and nitrogen'. '.strtoupper('y')ou will notice a marked improvement in your grass as this fertiliser takes effect over the course of the cutting season.