"Tandem lawn mowers" refers to the Tandem brand of Lawnmowers and the brand marketed by retailers such as Cutsmart.co.za and other South African retailers. Tandem is prominent in South Africa, with products like electric and petrol mowers.
Tandem
Tandem 650 watt - Lawn Bottom Mount Garden Trimmer
650 ti - Lawn amp; Garden Trimmer
Tandem 600w High Torque Electric Trimmer
600w High Torque Electric Trimmer
Tandem 6.0KvA Generator
6.0KvA Tandem Generator
54cc Tandem Petrol ... 
Tandem 510(20inch) Razor Electric
510(20inch) Tandem Razor Electric
Tandem 50mm Tandem Torx Water Pump 50MM XT196
50mm Tandem Torx water Pump 50MM XT196
Tandem 49.8cc ZT500 Petrol Chainsaw
49.8cc Tandem Petrol Chainsaw
Tandem 43cc Earth Auger 300mm
Tandem Earth Auger 43cc 300mm
Tandem 430(17inch) Razor Electric
430(17inch) Tandem Razor Electric
Tandem 40cc ZT428 Petrol Chainsaw
40cc Tandem Petrol Chainsaw
Tandem 3-in-1 Multi Tool (Brushcutter / Polesaw / HT)
Tandem 3-in-1 Multi Tool (Brushcutter / Polesaw / HT)
Tandem 26CC Bent Shaft Petrol Brush Cutter
26CC Bent Shaft Tandem Petrol Brush Cutter
Tandem 26cc 2-Stroke Petrol Blower
26cc 2-Stroke Tandem Petrol Blower
Tandem 2600W Electric BlowerVacuum
2600W Tandem Electric BlowerVacuum
Tandem 23cc Hedge Trimmer
Tandem 23cc Hedge Trimmer
Tandem 21��� Push Sweeper
Tandem 21Prime; Push Sweeper
Tandem 2.8KvA Generator
2.8KvA Tandem Generator
Tandem 2.2kVa Generator
Tandem 2.2kVa Generator
Tandem 10kVA Generator
Torx 10kVA Generator
Tandem 1000w Lawn Mower
Tandem 1000w Lawn Mower
Tandem 1.2kVa Generator
Tandem 1.2kVa Generator
Tandem - ZT600 Fuel Cap CPL
ZT600 Fuel Cap CPL
Tandem - ZT580 Cylinder Gasket
ZT580 Cylinder Gasket
Tandem - ZT520/580 16" GUIDEBAR FOR
ZT520/580 16" GUIDEBAR FOR
Tandem - ZT400 Starter Reel Set
ZT400 Starter Reel Set
Tandem - ZT400 Air Filter
ZT400 Air Filter
Tandem - XT620 - IGNITION COIL
XT620 - IGNITION COIL
Tandem - XT620 - AIR FILTER ELEMENT
XT620 - AIR FILTER ELEMENT
Tandem - XT420 - TAPPET
XT420 - TAPPET
Tandem - XT420 - PISTON RING SET
XT420 - PISTON RING SET