Round Tee Pieces

Round plastic tee pieces branch a single ducting run into two — serving two extract points from one fan, or joining two runs into a shared outlet. The equal tee push-fits between lengths of round plastic ducting, keeping the same smooth internal bore through the junction.

Available in three diameters: 100mm, 125mm and 150mm, matching the most common domestic fan and extract duct sizes.

When branching a system, think about balance: fit a back draught shutter on each branch if the two rooms are served by separate fans, so one fan cannot blow air back through the other. Complete the junction with couplers and support it either side with ducting clips. Order by 3pm for next-day delivery on stocked sizes.