Home / Ducting / Radial Ducting / Radial In-line Adaptor Radial In-line Adaptor £12.00 – £12.62 Radial NRDD75 in-line Adaptor. Available in 2 sizes. Size Choose an option204mm X 60mm to Ø75mm220mm X 90mm to Ø75mm Clear Radial In-line Adaptor quantity Add to basket SKU: N/A Categories: Ducting, Radial Ducting Tag: Radial Ducting Product ID: 10582