Bioscape Diaphram 500/1000 Air Pump 2 Pack
Water type
Freshwater and marine
Fits
Bioscape Tropic Air Pump 500, Bioscape Tropic Air Pump 1000
Part no.
BIS50A
Bioscape Diaphram 500/1000 Air Pump 2 Pack
Restores full air pressure to a worn aquarium air pump within minutes. This two-pack contains replacement diaphragms for the Bioscape Tropic Air Pump 500 and Bioscape Tropic Air Pump 1000, the small single-outlet pumps commonly used to run air stones, sponge filters and ornaments in freshwater and marine aquariums. When one of these pumps starts running weak, rattling or stops pushing air altogether, the diaphragm is usually the first part to wear out, and replacing it is far cheaper than buying a new pump.
Key features
- Two-pack of replacement diaphragms — enough for one full service or two single repairs.
- Matched to the Bioscape Tropic Air Pump 500 and Air Pump 1000 — both models share the same diaphragm mechanism.
- Restores lost air output — on pumps that have gone quiet, weak or noisy with age.
Specifications
| SKU | BIS50A |
|---|---|
| Barcode | 9327975043643 |
| Pack size | 2 diaphragms |
| Fits pump models | Bioscape Tropic Air Pump 500, Bioscape Tropic Air Pump 1000 |
| Vendor | Bioscape |
Which pump does this fit?
This diaphragm pack is matched to the Bioscape Tropic Air Pump 500 (single outlet, rated around 0.5 L/min, sold for tanks up to roughly 45 L) and the Bioscape Tropic Air Pump 1000 (single outlet, rated around 1.0 L/min, 2 W, 240 V). Both pumps share the same diaphragm mechanism, which is why one spare part covers both models. It does not fit the larger Tropic 2000, 3000, 4000 or 8000 pumps, which use different diaphragms sold separately.
How do I know if my pump needs a new diaphragm?
Typical signs are reduced airflow, a rattling or buzzing noise, or the pump running but producing little to no bubbles.
Suitable for / not suitable for
Suitable for hobbyists running a Bioscape Tropic 500 or 1000 air pump in a freshwater or marine aquarium. Not suitable as a spare part for other Bioscape air pump models or for pumps from other brands, since diaphragm sizing is model-specific.
Care and maintenance
Disconnect the pump from power before opening the housing. Remove the pump lid, lift out the old diaphragm and fit the new one in the same orientation, then reassemble and reconnect the air line before powering back on.
Warranty and delivery
Sold as a standard consumable replacement part; any fault on arrival is covered under your consumer guarantee rights under Australian Consumer Law. Ships as a small parcel.
Common questions
Does this pack include one diaphragm or two?
Two. A single diaphragm typically services one pump, so this pack covers two repairs or leaves a spare on hand.
Will this fit a Bioscape Tropic 2000 or 3000 pump?
No. The larger Tropic models use a different diaphragm, sold separately.
Is the diaphragm rubber or silicone?
Not confirmed. Bioscape does not publish the diaphragm material on its product documentation.
You may also like
