3 Way Pipe Joint For Hotbed (Greenhouse)

We use simple compost boxes as beds in the garden to grow lettuce and vegatables.
(The one in the picture is filled with compost and got small pumpkins planted in the meantime.)
I use ductwork and the joints and feet shown to cover the boxes - either with white thin fleece as a hotbed or with wire mesh to protect the plants from animals who dig the soil and eat the leaves.

Pipes used here have a diameter of 25 mm.

Prints without support. Just tur the "fuss" 180 degrees - upsidedown - to