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Althon R20B 05 3390 Right Hand Angled Rectangular Precast Headwalls are for outfalls discharging into ponds, swales, ditches beaches and rivers. Rectangular precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. 

Althon manufacture R20B 05 3390 Right Hand precast headwalls have a 1 : 2 wingwall profile and a backwall height of 1300mm. The headwall is 3390mm from the backwall to the end of the spillway and are manufactured in two sections

R20B 05 3390 Right Hand precast headwalls have angled spillways typically for when pipework is discharging into a river

All Rectangular Headwalls are cast with the opening in the back wall to suit the size and type of pipe being used at the invert level required.

If you require any assistance or more information please contact us by phone on 01603 488700 or by email sales@althon.co.uk

R20B 05 3390 RH Angled Rectangular Headwall line drawing
As standard our headwalls have a natural concrete finish.
We can offer coloured headwalls in 4 colours but the final shade is affected by many influences.
Our Headwall Products are available in a range of colours
Natural
Our Headwall Products are available in a range of colours
Cotswold
Our Headwall Products are available in a range of colours
Agate
Our Headwall Products are available in a range of colours
Raven Grey
Our Headwall Products are available in a range of colours
Everglade
Product Name
Max Pipe Opening PCC
Max Pipe Opening Plastic / C'ware
Backwall Height
Approx Headwall Weight (kg)
R20B 05 3390 RH Angled Rectangular Headwall
750
750
1300
5395

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    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 700mm Flap Valve + 3 Sided Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 700mm Flap Valve + Backwall Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock + 3 Sided Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock + 3 Sided Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock + Backwall Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 100mm Penstock + Backwall Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock + 3 Sided Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock + 3 Sided Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock + Backwall Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 150mm Penstock + Backwall Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock + 3 Sided Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock + 3 Sided Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock + Backwall Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 200mm Penstock + Backwall Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 250mm Penstock

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 250mm Penstock + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 250mm Penstock + 3 Sided Kee Klamp

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 250mm Penstock + 3 Sided Kee Klamp + Cranked Grating

    R20B 05 3390 Right Hand Angled Rectangular Headwall + 650 x 300mm Toe + 250mm Penstock + Backwall Kee Klamp

     

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