Home / Ducting / Ductmaster Thermal - Rectangular / Insulated Rectangular to Round Plenum Insulated Rectangular to Round Plenum £6.62 – £10.58 DUCTMASTER THERMAL insulated rectangular to Ø100mm round plenum. Available in 2 sizes. Size Choose an option204x60mm220x90mm Clear (the price listed does not include VAT and carriage) Insulated Rectangular to Round Plenum quantity Add to basket SKU: N/A Categories: Ducting, Ductmaster Thermal - Rectangular Tag: Thermal Ducting Product ID: 10533 Related products Horizontal T-Piece £2.44 – £8.54 (this price does notinclude VAT and carriage)View product Choose an option 110x54mm204x60mm220x90mm 90° Vertical Bend £1.71 – £4.33 (this price does notinclude VAT and carriage)View product Choose an option 110x54mm121x60mm204x60mm220x90mm Louvred Grille with Flyscreen £2.57 – £3.94 (this price does notinclude VAT and carriage)View product Choose an option 100mm125mm150mm Airbrick £1.22 – £4.51 (this price does notinclude VAT and carriage)View product Choose an option Double AirbrickDouble Airbrick AdaptorSingle Airbrick ( no shutter)Single Airbrick Adaptor