What sizes of penstock valves does Althon manufacture, and can they be pre-fitted?

What sizes of penstock valves does Althon manufacture, and can they be pre-fitted?

Althon's penstocks are available in HDPE and stainless steel from 100 mm up to 2000 mm. They can be either wall-mounted or inline, and Althon offers the option to factory-fit penstocks into their precast headwalls or chambers.

For more information on What sizes of penstock valves does Althon manufacture, and can they be pre-fitted? talk to Althon Ltd