E1500 Unibloc CP cartridge

This JBL insert is a biological filter sponge for aquarists running CristalProfi E filters who need a dedicated biological filtration stage. It sits in the filter's middle basket and gives beneficial bacteria a surface to colonise, which supports water quality in the tank.

Why it matters

• Placement: The insert goes into the middle basket of the CristalProfi E filter, so it is positioned within the existing filter arrangement without modification.
• Round cut-out: A round opening in the sponge accommodates special filter media, allowing the sponge to be combined with additional media in the same basket.
• Pore size: The pore structure is suited to biological filtration, meaning the sponge is designed for bacterial colonisation rather than mechanical debris capture alone.
• Manufacturer origin: This is an original JBL product, supplied as a replacement or extension part for the CristalProfi E system.

Specifications

• Brand: JBL
• Model: E1500 Unibloc CP
• Type: Biological filter sponge insert
• Compatible basket: Middle basket of CristalProfi E filters
• Features: Round cut-out for special filter media; pore size suited to biological filtration
• EAN: 4014162601629

What it works with

The insert is intended for freshwater aquarium setups using CristalProfi E filtration, where the middle basket is used for biological media. It is designed to be used together with the special filter media that fit the round cut-out in the sponge.