Retention Filters

The retention systems are protected against deposits and malfunction when filters are of an adequate size. Our portfolio of filters offers a wide range of solutions for every individual project. We would be only too happy to help you find the right solution.

Drainstar filter external, suitable for pedestrian loading

Ideally suited to infiltration and pond systems, Maximum roof area of 350 m² with DN 100 connection and 500 m² with DN 150 connection

100 % water yield

Universal-Filter 3 external suitable for pedestrian laoding

For roof surfaces up to 1,200 m²

Universal-Industrial Filter 3 external suitable for pedestrian loading

Allows up to 100 % water yield!

Ideal as yard inlet or as swale infiltration inlet element. Retains impurities that could have a negative effect on infiltration performance.

Sedimentation filter shaft, suitable for pedestrian loading

To clean rainwater before infiltration.

The good value alternative! Pot filter for cleaning rainwater.

Retention Filters

Drainstar filter external, suitable for pedestrian loading

Universal-Filter 3 external suitable for pedestrian laoding

Universal-Industrial Filter 3 external suitable for pedestrian loading

Universal-Filter 3 internal

Infiltration filter shaft

Sedimentation filter shaft, suitable for pedestrian loading

Pot filter

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GRAF UK Ltd
Tel. +44 1608 661-500 Fax +44 1295 211333	info@grafuk.co.uk www.graf-water.co.uk	Regen House, Beaumont Road Banbury, Oxfordshire, UK-OX16 1RH