EXTREME 3
Measure：150*170*420
Use to 100-300L Aquarium
ROCK SP1.0 Pump
220-240V, 50Hz, 12W (120V, 60Hz, 0.5A)
Air intake: 270 LPH
 
EXTREME 5 
Measure：180*185*470
Use to 300-500L Aquarium
ROCK SP1.5 Pump
220-240V, 50Hz, 16W (120V, 60Hz, 0.5A)
Air intake: 330 LPH
 
EXTREME 7
Measure：200*235*530
Use to 500-900L Aquarium
ROCK SP3.0 Pump
220-240V, 50Hz, 20W (120V, 60Hz, 1A)
Air intake: 660 LPH
 
EXTREME 9
Measure：250*295*610
Use to 900-1500L Aquarium
ROCK SP4.0 Pump
220-240V, 50Hz, 25W (120V, 60Hz, 0.5A)
Air intake: 1000 LPH