90 Radial Duct Connector. JOIN TWO LENGTHS OF 75mm RADIAL DUCTING

110mm x 54mm Flat Rectangular Ducting Connector. Join 2 lengths of ducting.

Fast Clamp Ducting Connector - 150mm

Metal Ducting Male Sleeve Connector 125mm / 5 inch Standard Coupler

100mm Round Flexible/Rigid Ducting Straight Connector

Radial Ducting Plenum with 2 x 75mm Connections, Pack of 2 - Best Value.

I-sells Metal Ducting Connector 200mm / 8 inch Female Coupling

Fast Clamp Ducting Connector - 200mm

Metal Ducting Male Sleeve Connector 100mm / 4 inch Standard Coupler

Fast Clamp Ducting Connector - 125mm

Blauberg Round Circular Plastic Ventilation Duct Pipe Joining Coupler - 125mm 5" Dia

Fast Clamp Ducting Connector - 100mm

150mm Round Ducting Flexible/Rigid Straight Connector

I-sells Metal Ducting Male Sleeve Connector 125mm / 5 inch Rubber Seal Coupling

I-sells Metal Ducting Connector 100mm / 4 inch Female Coupling

I-sells Metal Ducting Male Sleeve Connector 100mm / 4 inch Rubber Seal Coupling

204mm x 60mm Duct Connector Rectangular Duct

I-sells Metal Ducting Connector 125mm / 5 inch Female Coupling

Radial Ducting Plenum with 2 x 75mm Connections

I-sells Metal Ducting Male Sleeve Connector 150mm / 6 inch Rubber Seal Coupling