Marshalls Precast Concrete Headwalls - for pipework up to 900mm

Marshalls Civils & Drainage precast concrete headwalls connect pipework up to 900mm to open watercourses, controlling erosion and soil loss at discharge points. Made from precast concrete, these headwalls are supplied in three sizes with various height options and can be pre-fitted with gratings, Hydro-Brakes®, Penstocks, or Non-return Flap