CombiBloc CristalProfi E700/900 – filter cartridge for CristalProfi E filters
Replacement media set for JBL CristalProfi E700 and E900 canister filters, with four prefilter inserts and two…
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Find a productProduct description
This media set is intended for aquarists who run a CristalProfi E700 or E900 canister filter and need to replace worn or exhausted filter media. It supplies both prefilter inserts and foam sponges in two pore densities, so the filter can be restocked in one purchase.
Why it matters
- Tested plastics: According to the manufacturer, all plastics used by JBL passed testing for harmful substances and release none into the water, which matters for foam media in tanks with live animals.
- Two sponge densities: The set includes one 20 ppi and one 30 ppi foam sponge, giving a choice of coarser or finer mechanical filtration within the same canister.
- Replaceable prefilter inserts: Four prefilter inserts are included, allowing the coarse stage to be swapped without replacing the whole filter media stack.
- Biological start-up support: The manufacturer recommends seeding new or cleaned media with JBL FilterStart. Freshwater colonization normally takes 1–2 weeks, and seeding with concentrated bacteria shortens biological start-up to about 24 hours.
Specifications
- Compatible with: JBL CristalProfi E700 and E900
- Contents: 4 prefilter inserts, 1 foam sponge 20 ppi, 1 foam sponge 30 ppi
- Symbol: JBL WKL E700/E900 COMBIBLOC
- EAN: 4014162601599
- Weight: 0.09 kg
What it works with
The set is designed for freshwater aquaria filtered by CristalProfi E700 or E900 canister filters. The manufacturer advises replacing foam sponges about every six months, since mechanical cleaning cannot remove all accumulated dirt. Cleaning with warm running water between replacements is recommended. For saltwater use, colonization of the media takes about twice as long, and reused media take about twice as long to recolonize.
Technical specification
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Frequently asked questions
The set is designed for JBL CristalProfi E700 and E900 external filters, as the product code E700/E900 indicates. It is listed under filtration media and inserts for those models.
The set contains 4 pre-filter inserts, 1 filter sponge rated 20 ppi and 1 filter sponge rated 30 ppi. The total weight of the package is 0.09 kg.
The manufacturer recommends rinsing dirty sponges under warm running water, but says mechanical cleaning never removes all dirt, so replacing them about every 6 months is advised. After rinsing, the sponges should be reseeded with filter bacteria before reinstalling.
In freshwater, bacterial colonization of new filter media takes about 1–2 weeks, and about twice as long in seawater. According to the manufacturer, adding concentrated bacteria such as JBL FilterStart shortens the biological start-up to about 24 hours.
The manufacturer states that all plastics used by JBL have passed testing for harmful substances and do not release any harmful substances into the water. This matters because many plastics release plasticizers into water.
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