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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  • Althon: Althon CH 250 high capacity GRC drainage channel 87l/m
    Althon CH 250 high capacity GRC drainage channel 87l/m
    Althon
    Althon CH 250 precast GRC drainage channels. Trapezoidal profile. High capacity of 87 l/m. Channel width 254mm. Overall dimensions L2000mm x W380mm x D515mm. Choice of 9 lids for C250 and D400 loadings. Suitable for large...
  • ACO Water Management: ACO H Range monocast heavy-duty slotted drainage systems
    ACO H Range monocast heavy-duty slotted drainage systems
    ACO Water Management
    H Range products are one-piece drainage systems designed for heavy-duty applications such as highways, industrial areas and distribution yards. The channel systems are manufactured from polymer concrete and have large intake...
  • 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...
  • Althon: Galvanised steel orifice plates - flat
    Galvanised steel orifice plates - flat
    Althon
    Orifice plates in galvanised steel to restrict and regulate the flow of water. The opening in the plate can be manufactured to specified dimensions and positions. All necessary fixing materials and an EPDM seal with every...
  • SDS: Stora-Self surface water drainage channels
    Stora-Self surface water drainage channels
    SDS
    Stora-Self are high-strength, polyester concrete drainage channels for use in domestic environments. They are available in a choice of loading classes, up to and including class B125, to suit applications from gardens,...
  • ACO Water Management: ACO MultiDrain™ PPD channel drainage
    ACO MultiDrain™ PPD channel drainage
    ACO Water Management
    ACO MultiDrain™ PPD channel drainage systems are suitable for areas subject to pedestrian traffic, cars, service vehicles or HGV traffic. Typical applications include commercial developments, residential developments,...
  • Althon: SFA27 D headwall, backwall height 2350
    SFA27 D headwall, backwall height 2350
    Althon
    SFA27 D precast concrete headwalls are designed to comply with Sewers for Adoption guidelines for pipework discharging into open watercourses for concrete pipework up to 1600mm and plastic / clay pipework up to 1800mm: up to...
  • Marshalls: Max-E Channel high-capacity linear drainage system
    Max-E Channel high-capacity linear drainage system
    Marshalls
    Max-E Channel is a high-capacity linear drainage system that complements the Beany range of drainage kerbs to ensure continuity between kerb and top units. It is suitable for pedestrian traffic, motor cars and occasional...
  • Marshalls: Modal Priora textured permeable concrete block paving
    Modal Priora textured permeable concrete block paving
    Marshalls
    Modal Priora permeable block paving has a finely textured finish. Three tonal greys and five plan sizes enable striking visual effects. Patented nibs along the edge of each paving stone allow the blocks to be laid in all...
  • Althon: Concrete slot drainage channel - Profile II-1
    Concrete slot drainage channel - Profile II-1
    Althon
    The concrete slot drainage channel with II-1 profile has a linear slot drain and a large circular drainage channel. Overall dimensions L4000mm x W520mm x D500mm. Drain top width 500mm. 3% surface slope to the 30mm slot.
  • Althon: SFA15 C headwall, backwall height 2000
    SFA15 C headwall, backwall height 2000
    Althon
    SFA15 C precast concrete headwall for connecting pipework discharging into open watercourses. Sewers for Adoption compliant. Pipework up to 1200mm. Backwall height 2000mm
  • Althon: Precast concrete headwalls for culverts
    Precast concrete headwalls for culverts
    Althon
    Althon culvert headwalls recess the inflow and outflow at the end of the pipe or culvert into the slope to improve entrance flow conditions, and to anchor the pipe and prevent disjointing due to excessive velocities
  • Althon: Althon GRC small headwall
    Althon GRC small headwall
    Althon
    The Althon GRC small headwall is a lightweight, one-piece, recessed unit that is supplied with a unique anchorage system. For most situations where batter angle is not less than 45 degrees, and for use in minor water courses...
  • Marshalls: Conservation Priora permeable concrete paving
    Conservation Priora permeable concrete paving
    Marshalls
    Conservation Priora is a permeable, textured concrete paving range with granite aggregate. It is produced in three large plan sizes and three complementary colourways. Conservation Priora has been designed to facilitate the...
  • Althon: Chieftan inspection chamber 1830 x 1675 x 1695
    Chieftan inspection chamber 1830 x 1675 x 1695
    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...