Integrated stormwater management solutions on EXTERNAL WORKS. Helping you find the best product for your project.
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  • 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: 316 stainless steel orifice plates - flat
    316 stainless steel orifice plates - flat
    Althon
    Flat orifice plates in 316 stainless 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...
  • 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: Precast concrete headwalls with factory-fitted options
    Precast concrete headwalls with factory-fitted options
    Althon
    Precast concrete headwalls – the largest range in the UK. To make the selection of a precast concrete headwall and its associated factory-fitted accessories as easy as possible, Althon provides an online Headwall...
  • Althon: H8C headwall range,  1100 / 1500 / 2100 backwall height
    H8C headwall range, 1100 / 1500 / 2100 backwall height
    Althon
    A one-piece reinforced concrete headwall to suit plastic or clayware pipes up to 525mm or PCC pipes up to 450mm. Available with three standard backwall heights, 1.1m, 1.5m and 2.1m; lfting points cast in to each wingwall for...
  • Hydro International: First Defense® vortex stormwater separator
    First Defense® vortex stormwater separator
    Hydro International
    First Defense® is an economical hydrodynamic vortex separator which effectively removes sediment, litter and oil from surface water runoff. Captured pollutants are kept safely within the drainage network keeping public areas...
  • Althon: Medium precast concrete headwalls
    Medium precast concrete headwalls
    Althon
    Althon medium precast headwalls are suitable for pipe sizes ranging from 450 to 900mm concrete or plastic pipework. Headwall openings are cast to suit the outsider diameter of the connecting pipework. Medium headwalls can be...
  • ACO Water Management: ACO QuadraCeptor water run-off filtration system
    ACO QuadraCeptor water run-off filtration system
    ACO Water Management
    ACO QuadraCeptor is a specialist rainwater and surface water run-off filtration system for the removal of sediment and harmful pollutants. The first objective of any SuDS scheme is to manage the water at source and, where...
  • Althon: 45° sloped trash screens
    45° sloped trash screens
    Althon
    Althon sloped trash screens with a 45° 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...
  • SDS: SDS GEOlight® Modular Underground Stormwater Storage
    SDS GEOlight® Modular Underground Stormwater Storage
    SDS
    GEOlight® stormwater management units are suitable for use in sustainable drainage systems (SuDS) for stormwater attenuation or soakaway infiltration. The units are PVC modular honeycomb structures with high capacity, high...
  • Polypipe Civils: Polystorm geocellular systems for deeper applications
    Polystorm geocellular systems for deeper applications
    Polypipe Civils
    The Polystorm range of modular geocellular structures is used for the control and management of surface water. The structures are designed to provide retention, attenuation or infiltration, primarily for deeper applications.
  • Althon: Bespoke precast concrete headwalls
    Bespoke precast concrete headwalls
    Althon
    Althon offers a full design and build service for bespoke headwall requirements, resulting in the manufacture and supply of a precast bespoke headwall that is uniquely tailored to a specific set of criteria.
  • Althon: Rectangular Sewers for Adoption (RSFA) Headwalls
    Rectangular Sewers for Adoption (RSFA) Headwalls
    Althon
    Althon Rectangular Precast Headwalls are Sewers for Adoption compliant precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two...
  • SDS: SDS Rigofill Modular Stormwater Storage/Infiltration
    SDS Rigofill Modular Stormwater Storage/Infiltration
    SDS
    Rigofill stormwater storage systems are geocellular strctures used to store stormwater that is unable to soak into the ground naturally. The water can then be allowed to infiltrate, under controlled conditions, or can be...
  • Althon: SFA20 A headwall, backwall height 1300
    SFA20 A headwall, backwall height 1300
    Althon
    SFA20 A 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 750mm: up to 750mm Pipework; 1300mm...