Home / Ducting / Ductmaster Thermal - Rectangular / Insulated Rectangular to Round Adaptor Insulated Rectangular to Round Adaptor £9.36 – £9.81 DUCTMASTER THERMAL insulated rectangular to round adaptor. Available in 2 sizes Model Choose an option220x90mm Insulated Rectangular to Ø125mm Round Adaptor220x90mm Insulated Rectangular to Ø150mm Round Adaptor Clear Insulated Rectangular to Round Adaptor quantity Add to basket SKU: N/A Categories: Ducting, Ductmaster Thermal - Rectangular Tag: Thermal Ducting Product ID: 10537