H3G Headwall
The Althon H3G Headwall is a one-piece glass reinforced cement (GRC) headwall with an opening to suit 150mm diameter pipes and knockout webs to enlarge to 225mm and 300mm diameter pipes. Stainless steel sockets are provided for the attachment of gratings. The dimensions of the unit are as the H3C (linked below) with a reduced toe depth of 150mm and nominal wall thickness of 20mm.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Natural
Cotswold
Agate
Raven Grey
Everglade
Brochures, Datasheets and Installation Instructions for H3G Headwall
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Related Products
Althon GRC Small Headwall
- Up to 150mm Pipework
- One Piece GRC Headwall
H3C Headwall
- Up to 300mm Pipework
- Only 530KG
Precast Concrete Headwalls
Althon precast concrete headwalls offer a cost effective alternative to in-situ headwalls acting as inlets and outlets for attenuation ponds, rivers, ditches, swales and tidal environments. We have ranges of Sewers for Adoption 7th Ed. and Severn Trent Water specification compliant ranges. We offer a range of factory fitted accessories suitable for each specific range such as, flap valves, penstocks, Kee Klamp® handrails, baffle blocks as well as gratings and trash screens.