Filter Foam Mat 3cm

High-quality open-pored filter foam mat in size 50 x 50 x 3 cm.  You can choose from fine or medium structure, fine is especially produced for us in a PPI40 quality,  medium is about PPI35.

For the construction of "Hamburger Mat filter" (HMF) or universally suitable for every internal and external filter.

• withstands temperatures above 75°C
• best quality from German production, no cheap import
• this foam contains no plasticizers and is CFC-free produced
• high resistance to aging (in many breeding facilities already 10 years in use)
• absolutely water-neutral, no substances are released into the water
• finally a filter material in a 'neutral' color if you choose the black one
• the filter foam can be overgrown with mosses and ferns