T piece for connecting 60mm i/d or 65mm o/d hot air ducting. Can also be used to retain vents in cabinetry when used in ducting runs. Suits ducting used with Propex Heatsource heaters and Whale space heaters and Truma 65mm ducting. Quality moulded design means no need to use jubilee clips or screws to retain ducting. Ducting will push in and stay in place so no fiddling about trying to put screws in.