Heater Ducting& nbsp;<span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span> (38mm) <ul><li>Lightweight Flexible Plastic Coated Heater Ducting Steel Spiral Wire Re-inforced Sold Per Metre</li><li>All Measurements are Internal Diameters</li></ul>