[WD102 Roof outlet, 50 mm spigot, stainless steel gravel guard, polycarbonate secured dome grating]
[WD103 Roof outlet, 75 mm spigot, stainless steel gravel guard, polycarbonate secured dome grating]
[WD104 Roof outlet, 100 mm spigot, stainless steel gravel guard, polycarbonate secured dome grating]
[As drawing ___]
[Contractor's choice]