Althon 600 Mitred Headwall is a fibre reinforced precast concrete open inlet for surface water runoff, designed for pipework up to 600mm internal diameter. Inlet profile matches a 1:3 (18°) slope for swales and ponds, with a galvanised steel straight bar grating and optional inline non-return valve. Standard finish is natural concrete, with four colour options.

  • Fibre reinforced precast concrete headwall for 600mm pipes
  • Open inlet design for SUDS, swales, ponds, and overflows
  • 1:3 (18°) mitred profile aligns with ground slope
  • Galvanised steel straight bar grating included
  • Optional factory-fitted 600mm inline non-return valve
  • Choice of four concrete colours

Applications

  • Surface water runoff entry to SUDS features
  • Swale and pond inlets or outlets
  • Overflow structures
  • Stormwater drainage systems

Dimensions

Max pipe opening: 600mm

Backwall height: 1100mm

Approximate weight: 5090kg

Materials

Fibre reinforced precast concrete

Galvanised steel grating

Finish

Natural concrete (standard)

Options and variations

Colour options: Natural, Cotswold, Agate, Raven Grey, Everglade

Optional 600mm inline non-return valve (e.g. WaStop)