Description
Know your filter is working at a glance — replace your worn Eheim flow indicator ball
and cage with a genuine OEM part.
The Eheim Flow Indicator Ball and Cage is a genuine replacement part for the Eheim
Professional II canister filter range. The flow indicator is a small but essential
component housed in the filter outlet — the floating ball rises and falls with water
flow, giving you an instant visual confirmation that your filter is running and
circulating water properly.
Over time the ball can wear, rattle, or stop floating correctly — this genuine
replacement restores full indicator function quickly and easily.
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FEATURES & BENEFITS
- Genuine Eheim replacement part — exact OEM fit for Pro II models 2026 and 2028
- Visual flow confirmation — the floating ball rises with active water flow and
drops when flow stops or slows, giving instant filter performance feedback
- Easy to replace — simple component swap, no specialist tools required
- Also compatible with Eheim 2126 and 2128 models
- Genuine Eheim quality — manufactured to the same standards as the original part
- Restores full flow indicator function to your filter outlet
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SPECIFICATIONS
- Brand: Eheim
- Part Number: 8000940
- Compatible Models: Eheim Professional II — 2026 / 2028 / 2126 / 2128
- Component: Flow indicator ball and cage assembly
- Installation: Component replacement, no tools required
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HOW TO USE
1. Switch off and unplug your Eheim canister filter
2. Close the double tap valves to stop water flow through the hoses
3. Disconnect the outlet assembly from the hose
4. Remove the worn or damaged flow indicator ball and cage from the outlet housing
5. Insert the new ball and cage assembly into the outlet housing
6. Reconnect the outlet hose and open the double tap valves
7. Restart the filter and confirm the ball rises with water flow
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PRO TIP
If your flow indicator ball has started rattling during normal filter operation,
this is a sign the ball has worn and is no longer seating correctly. Replace it
promptly — a worn indicator does not affect filter performance but makes it harder
to visually confirm your filter is running at full capacity. Keeping a spare on
hand means zero downtime when it needs replacing.
Ships Australia-wide. In-store pickup available at our Coburg store, open 7 days 10am–6pm.
