The innovative drainage filters by RBM are successfully being used all over the world. They are state of the art and meet international standards as the KOMO quality certification.

PP 450 filter The O90 Test value of this filter is 450 μm and holds back 90% of all soil particles bigger then 450 μm. It consists of a blend of synthetic fibers and can be used for several soil types and circumstances and is manufactured according to the KOMO Standard.
PP 700 filter The O90 Test value of this filter is 700 μm and holds back 90% of all soil particles bigger then 700 μm. The PP 700 filter consists of a different blend of synthetic fibers than the PP 450 filter and is mainly used for loamy sands, sandy soils and peaty soils. It is manufactured according to the KOMO standard.
PP 1000 filter The O90 Test value of this filter is 1000 μm and holds back 90 % of all soil particles bigger then 1000 μm. The PP 1000 filter consists of coarse high class synthetic fibers and is a non degradable filter that is mainly used in soils with an high iron ochre content.
Thin Geotextiles filters Thin Geotextiles filters used as drainage filters are manufactured by a variety of manufacturers in many versions (Cerex, Typar, knitted sock envelope).