17x 1800mm Evacuated Glass Solar Heating Tubes

Skylarc Ref C126223

Expected Auction End Time: 2nd August 2021 6:02pm

17x 1800mm Evacuated Solar Heating Tubes.
Each glass tube is 1800mm long, 55mm diameter with rubber cap at one end and rounded edged open ended at opposite end.
Lightweight.
Interior has black coating baked into the glass.
Inside each glass tube are thin lightweight metal strips each 420mm in length.
No ID markings on any of the Tubing.
No copper water piping included with tubes.
Please see photos for further details on design/type.
Items appear unused but cannot verify.