Restrictor turns existing urban flat roofs into “Passive Blue Roofs.” It is designed to be used with existing roof drains and will fit around existing drains building on a flat roof without modification. The vertical weirs feature variable flows based on the storm's rainfall intensity. It is made from 1/4-inch thick carbon steel with up to 90 percent recycled content. A black, non-toxic coating prevents corrosion and discourages nesting.
Lochinvar: Regent
VOSKER: VOSKER PRO
Morse Watchmens: KeyWatcher Sentinel
Iris ID: IrisAccess iA1000 Series
EGO: 2026 Z6 Mowers