From Ryno
Ryno T-Pipe Mechanical Fix Flange Rainwater Outlet Leaf Guard prevents the ingress of leaves and other debris into the rainwater outlet. For use with T-Pipe Mechanical Fix Flange Rainwater Outlets: Benefits Manufactured to the highest specification Incorporate a clamping ring that creates a secure, leakproof seal between the roofing membrane and rainwater outlet Thermoplastic drain body is highly durable Remains flexible, even at very low temperatures Suitable for all atmospheric conditions