OASE Spare rotor for optimax pump

Description

BioCompact 25

Pos.
Product

Sku

1
Filter foam set BioCompact 25
45099

2
Spare rotor 300
44937

3
Spare suction cup D20
44948

500

Pos.
Product

Sku

1
Spare rotor 500
44938

2
Spare suction cup D20
44948

800

Pos.
Product

Sku

1
Spare rotor 800
44939

2
Spare suction cup D20
44948

1000

Pos.
Product

Sku

1
Spare rotor 1000
44940

2
Spare suction cup D20
44948

2000

Pos.
Product

Sku

1
Spare rotor 2000
37949

2
Spare pump cover 2000
44942

3
Spare suction cup D30
44949

4
Hose connector 1″ – 17 mm
44947

5
Spare prefilter housing 2000 – 5000
44946

3000

Pos.
Product

Sku

1
Spare rotor 3000
37950

2
Spare pump cover 3000
44943

3
Spare suction cup D30
44949

4
Hose connector 1″ – 17 mm
44947

5
Spare prefilter housing 2000 – 5000
44946

4000

Pos.
Product

Sku

1
Spare rotor 4000
44941

2
Spare pump cover 4000
44944

3
Spare suction cup D30
44949

4
Hose connector 1″ – 17 mm
44947

5
Spare prefilter housing 2000 – 5000
44946

5000

Pos.
Product

Sku

1
Spare rotor 5000
37951

2
Spare pump cover 5000
44945

3
Spare suction cup D30
44949

4
Hose connector 1″ – 17 mm
44947

5
Spare prefilter housing 2000 – 5000
44946

OASE OptiMax Spare Rotor: The Part That Keeps Your Pump Alive

The rotor (impeller) is the single wear part most likely to bring an OASE OptiMax pump to a halt, and in Singapore that day usually arrives sooner than the manual suggests. Year-round warmth fuels brisk biofilm and limescale build-up, and fine grit drawn through the intake gradually scores the shaft and magnet. When you notice reduced flow, rattling, or a pump that hums but will not start, a fresh rotor is almost always the cheap fix before you consider replacing the whole unit.

Match the spare to your exact model size, as the OptiMax range uses different rotors across the 300, 500, 800, 1000, 2000 and 3000 variants. We suggest keeping one in the drawer: a stalled pump means stalled filtration and circulation, and at our ambient temperatures dissolved oxygen and water quality slide quickly once flow stops. Swapping a rotor is a five-minute job that saves a sick tank.

Find more in our water pumps section, and our guides to the best aquarium water pumps and aquarium powerheads help you keep circulation reliable.