A patented multi-component non-metallic filter screen system

product pdf

Can be produced to provide filtration down to an equivalent slot width of 100 microns and which can be used in conjunction with TerraDrain™ for specialist drainage applications.

TerraFilter™ incorporates a specially constructed Water Conducting Sleeve, which allows water from all areas of the screen into the slotted or perforated apertures of the base pipe. The uninhibited flow of filtered water towards the apertures makes TerraFilter™ an extremely hydraulically efficient low head loss system.

TerraFilter™ can  be used for horizontal or inclined drainage pipes to reduce pore water pressures and thus improve the stability of railway embankments.
Installation can be done easily by horizontal directional drilling (HDD) or traditional excavation techniques.

Available in dimensions 63 to 315mm.


# Hydraulically efficient
# High Open Area
# Quick & easy to install
# High crush resistance
# Can be back flushed
# Visual monitoring
# UV resistant
# Compatible with standard metric PE pipe systems

Head Office: +44 (0)1359 271167   |   Coventry Office: +44 (0)2476 602323   |   Telford Office: +44 (0)1952 459778

Marton Geotechnical Services Ltd
Geotechnical Centre, Rougham Industrial Estate, Rougham, Bury St Edmunds, Suffolk IP30 9ND

Geotechnical Instrumentation | Groundwater Monitoring | Landfill Gas Extraction Venting Systems

Drilling: Site investigation, land remediation and water well construction.
Products: Geoscreen, Geofilter, Duroscreen, Bentonites, Filter media, Piezometers.

Groundwater: Monitoring, sampling remediation and control.
Products: Diver Dataloggers, Groundwater Monitoring Software.

Landfill Drainage: Collection and removal of leachate and methane gas.
Products: PE Pipework, Telescopic Duroscreen, Wellheads, Knockout Pots, Manifolds & Chambers.

Demco Rail Track Drainage, Sewer and Culvert Rehabilitation products.
Products: Terradrain, Terraline, Terrafilter, Terrapit.

Geothermal: Ground source heat installations.
Products: Geothermal loops, Geothermal Grouts, Geothermal Test Units.

Pumps: For use in environmental and civil engineering projects.
Products: Geopump, Posiflow, Geoskimmer, Geovac, ProPurge.

Fraste: Fraste hydraulic drilling rigs and accessories
Products: Fraste Drilling Rigs and Accessories, Multidrill Series, FS Series, Mito Series, Exploration Series