Surface water drainage products and systems to collect, treat, store and release stormwater and rainwater from highways, pavements, industrial hardstandings and driveways on EXTERNAL WORKS. Helping you find the best product for your project.
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  • Hydro International: Up-Flo™ Filter fluidised bed filtration system
    Up-Flo™ Filter fluidised bed filtration system
    Hydro International
    The Up-Flo™ Filter is a high rate, modular stormwater filter system that combines a patented upward flow path with a unique drain down design. It is designed specifically for removing a wide range of pollutants, including...
  • Althon: RSFA18 rectangular precast concrete headwall
    RSFA18 rectangular precast concrete headwall
    Althon
    RSFA18 are Sewers for Adoption compliant rectangular precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two thicknesses of toe,...
  • SDS: Aqua-Filter™ separator & filter for surface water runoff
    Aqua-Filter™ separator & filter for surface water runoff
    SDS
    SDS Aqua-Filter, in conjunction with SDS Aqua-Swirl, is a hydrodynamic separation and filtration system for the removal of fine sediments, nutrients, heavy metals and hydrocarbon pollutants from surface water runoff.
  • ACO Water Management: ACO HexDrain® Pro drainage channel
    ACO HexDrain® Pro drainage channel
    ACO Water Management
    ACO HexDrain Pro is a high-quality, high-strength black plastic channel drainage system. It has integral black plastic edge rails for improved strength. Each channel unit comes with Heelguard™ gratings fitted with ACOs...
  • Althon: 60° sloped trash screens
    60° sloped trash screens
    Althon
    Althon sloped trash screens with a 60° rake are manufactured in galvanised mild steel: 40 x 10mm flats at 75mm centres, and 50 x 12mm flats at 100mm centres; designed to suit pipework up to and including 1500mm; manufactured...
  • Terram: TERRAM B1 drainage geomembrane
    TERRAM B1 drainage geomembrane
    Terram
    TERRAM B1 is suitable for vertical structure applications where waterproofing protection is not a requirement.
  • ACO Water Management: ACO Q-Brake Vortex flow control system
    ACO Q-Brake Vortex flow control system
    ACO Water Management
    ACO Q-Brake Vortex is a vertical-vortex flow control system, designed to regulate stormwater flow before it discharges into watercourses or sewer networks. It is suitable for a variety of SUDS applications including...
  • Althon: XLS18 headwall, backwall height 1900
    XLS18 headwall, backwall height 1900
    Althon
    A one-piece reinforced concrete Headwall to suit plastic and PCC pipes up to 1200mm. Two 10T – 340 Capstan Lifters are cast into the top of the back wall for lifting and positioning; the toe is cast separately and is...
  • Marshalls: Mono Beany one-piece combined kerb and drainage system
    Mono Beany one-piece combined kerb and drainage system
    Marshalls
    Marshalls Mono Beany is a low- to medium-capacity, one-piece combined kerb and drainage syste that has evolved from Marshalls' Beany Block. Mono Beany combines a combination of Marshalls M-Tech high-strength concrete, which...
  • Althon: Chieftan inspection chamber 1830 x 1675 x 780
    Chieftan inspection chamber 1830 x 1675 x 780
    Althon
    The Althon Range of Chieftan Precast Inspection Chambers has been designed to make installation on-site as straightforward as possible. Each inspection chamber comes in two halves with a reinforced cover slab. The units are...
  • Tobermore: Hydropave Standard Flags
    Hydropave Standard Flags
    Tobermore
    Ideal for busy pedestrianised areas, Hydropave Standard Flags are a non-slip, granular permeable block paving product that functions as a SuDS paving system: non-slip finish; superb hard-wearing surface; vibrant long-lasting...
  • Althon: Standard precast concrete headwalls
    Standard precast concrete headwalls
    Althon
    Althon's standard range of headwalls can accommodate pipework up 2100mm. Multiple pipe openings can be precast into outfalls if required. As standard Althon will cast in the pipe openings 100-150mm above the spillway.
  • Althon: H50C headwall, backwall height 815
    H50C headwall, backwall height 815
    Althon
    A one piece concrete headwall to suit pipes up to 600mm internal diameter. These headwalls can be used when the ditch bank is very shallow approx 1:3.3 They can be provided with fixings for grating, flap valves or with a...
  • Althon: SFA15 D headwall, backwall height 2350
    SFA15 D headwall, backwall height 2350
    Althon
    SFA15 D precast concrete headwalls are designed to comply with Sewers for Adoption guidelines for pipework discharging into open watercourses for plastic, clay or concrete pipework up to 1200mm up to 1200mm Pipework; 2350mm...
  • Althon: SFA27 A headwall, backwall height 1300
    SFA27 A headwall, backwall height 1300
    Althon
    SFA27 A precast concrete headwall for connecting pipework discharging into open watercourses. Sewers for Adoption compliant. Pipework up to 675mm for PCC pipework and 750mm for plastic and clayware pipework. Backwall height...