The new Series 772 AVK Sealschur penstock range are products designed to compliment our existing water and sewage offering. It consists of the AP3 and AP4 with 3 and 4 sided sealing and the hi-integrity ‘Safox’ penstock. Manufactured from stainless steel, the AVK Sealschur range of penstocks are suitable for the various installation methods. Duties up to 14 metres head and bi-directional sealing offers a versatile, corrosive resistant, easy to install penstock range. ...Find out more