JBL UniBloc i40 Replacement Foam Cartridge
Clear and healthy water: replacement foam cartridge for aquarium filters CristalProfi i40 and TekAir – round cross section with T-profile
Use: add FilterStart. Usable for TekAir and CristalProfi i40
Foam with ideal service life thanks to 25 ppi pores, effective mechanical and biological filtering
No release of harmful substances: 100% water neutral synthetic material
Package contents: 1 replacement foam cartridge
| Feature | Detail |
|---|---|
| Filter Compatibility | CristalProfi i40, TekAir |
| Material | 100% water neutral synthetic |
| Pore Density | 25 ppi |
| Shape | Round cross section with T-profile |
| Package Quantity | 1 piece |
FAQ
Is this foam cartridge compatible with both CristalProfi i40 and TekAir filters?
Yes, this replacement foam cartridge is compatible with both CristalProfi i40 and TekAir filters.
Does the foam release any harmful substances into the water?
No, the foam is made of 100% water neutral synthetic material and does not release harmful substances.
How long does the foam cartridge last under normal use?
The foam has an ideal service life due to its 25 ppi pore structure, providing effective mechanical and biological filtration.

Peter Roberts –
I replaced the old foam in my i40 filter and noticed a significant improvement in water clarity. The filter runs smoothly and the water stays cleaner for longer. Easy to install and fits perfectly.
Ian Dickens –
Great product, works well with my TekAir filter. The foam maintains water quality and doesn’t break down quickly. No smell or residue, just clean filtration.
Joan Morgan –
Fits my CristalProfi i40 exactly. The filter performance improved after replacement. A bit harder to install than the original, but worth the effort.
Natalie James –
Used it after the original foam degraded. The 25 ppi pores help trap particles effectively. Water looks clearer and the tank feels more stable.