Althon manufacture concrete headwalls with Tideflex duckbill valves. We factory fit the duckbill valves to our precast headwalls ensuring they fit properly every time and reducing installation time on site. Factory fitting duckbill valves to headwalls means the headwalls do not have to be drilled once on site.

We can fit multiple duckbill valves to a single headwall if required.

If you would like to specify a headwall with Tideflex duckbill valves please fill out our Headwall Design Request Form and we will email you back CAD and PDF drawings.

You can also visit the Precast Headwalls section of our website or the Tideflex section.


If you require any assistance or more information please contact us by phone on 01603 488700 or by email