Bioscape Black Foam Insert Motor Compartment 400/700 4Pk
Fits
Bioscape Velocity 400, Bioscape Velocity 700
Part no.
BIS176
Bioscape Black Foam Insert Motor Compartment 400/700 4Pk
A fresh motor compartment foam keeps grit away from the impeller in your Bioscape Velocity 400 or 700 internal filter. This four-pack replaces the small black foam disc that sits inside the motor housing, catching fine debris before it can reach the moving impeller shaft. It's a shared part across the Velocity 400 and Velocity 700 — the same insert fits both models.
Key features
- Protects the impeller — fine grit that gets past the main intake sponge is stopped before it reaches the motor shaft, which is what actually causes an impeller to jam or wear.
- Four in the pack — enough for roughly a year of scheduled swaps on one filter, or one swap each across two filters.
- Fits both the Velocity 400 and Velocity 700 — Bioscape uses the same motor compartment foam across both models, so one SKU covers either.
- Cheap insurance for the motor — a $3.95 pack is far less than a replacement motor unit.
Specifications
| SKU | BIS176 |
|---|---|
| Barcode | 9327975046095 |
| Pack quantity | 4 foam discs |
| Position | Motor compartment (not the main intake sponge) |
| Fits | Bioscape Velocity 400, Bioscape Velocity 700 |
Which Velocity filter do I have?
Bioscape's Velocity range is numbered by flow rate. Check the model number printed on the filter body, or match it against your tank size:
| Model | Flow rate | Wattage | Suits tank up to | Motor compartment foam |
|---|---|---|---|---|
| Velocity 400 | 400 L/h | 6 W | 40 L | BIS176 (this pack) |
| Velocity 700 | 700 L/h | 10 W | 70 L | BIS176 (this pack) |
| Velocity 1000 | 1000 L/h | 15 W | 100 L | Sold separately (BIS167, intake foam) |
| Velocity 1500 | 1500 L/h | 25 W | 150 L | Sold separately (BIS178) |
| Velocity 2000 | 2000 L/h | 30 W | 200 L | Sold separately (BIS179) |
What's included
Four black foam discs sized for the Velocity 400/700 motor housing. The filter body, impeller, intake sponge, carbon bag and phosphate pad are not included — this pack is the motor compartment foam only.
Suitable for, and not suitable for
- Suitable for: the Bioscape Velocity 400 and Velocity 700 internal filters, freshwater or saltwater.
- Not suitable for: the Velocity 1000, 1500 or 2000 — those use a larger foam sized for their own motor housing.
Care and maintenance
Bioscape hasn't published a fixed replacement interval for this foam. Rinse it in tank water at each filter clean, and replace it once it's compressed flat, torn, or no longer springs back into shape — a flattened foam stops catching grit.
Warranty and delivery
Sold as a standard consumable spare part. Any fault on arrival is covered under your consumer guarantee rights under Australian Consumer Law. Ships as a small parcel.
Common questions
Does one pack fit both the Velocity 400 and the Velocity 700?
Yes. Bioscape uses the same motor compartment foam for both models, so BIS176 fits either filter.
Is this the same as the intake sponge?
No. This is the smaller foam disc inside the motor housing, not the main intake sponge that does the bulk of the mechanical filtering. It's sold and replaced separately.
How do I know if I have a 400 or a 700?
Check the model number printed on the filter body, or compare your tank size against the table above — a 700 is rated for roughly double the tank size of a 400.
What happens if I don't replace it?
A flattened or torn motor compartment foam stops catching grit, which can let debris reach the impeller shaft and cause it to run noisily or jam over time.
You may also like
