All Style Large Retro-Split Storm Collar Umbrella Flashing; Fits Nominal Pipe Size 6 in. Dia (6.675 in. O.D.) Pipe 706626 - The Home Depot
All Style Industries 1/2 inch Double All Style Small 2-Hole STD-Storm Collar Flashing; with Two (2) 1/2 in. Diameter Supply/Return Conduit Pipe Nipples in the Vent Pipe Flashing department at Lowes.com
Clamp Umbrella Storm Collar for Roof Pipe Penetrations in Stainless Steel
Insulated Chimney Pipe Storm Collar for Water Run Off - Stainless Steel
Commercial Retro-Split™ Storm Collars - All Style Industries
Selkirk SuperPro All-Fuel 0/12 to 6/12 Pitch Roof Flashing with Storm Collar - For 6-Inch Inner Diameter SuperPro
Flashing of Penetrations in Existing Roofs | Building America Solution Center
Clamp Umbrella Storm Collar for Roof Pipe Penetrations in Stainless Steel
AllFuelHST Flat Roof Flashing for 6" Chimney Pipe - ComfortBilt
All Style Industries, LLC All Style Medium Standard STD-Storm Pipe Flashing Collar, Fits Nominal Pipe Size 3 in. Dia (3.5 in. O.D.) Round Pipe 701162 - The Home Depot
Large Pipe Flashing / Storm Collar, 4 inch (4.5 ID)
Roofing Detail: Pipe Penetration with Pre-Formed Flashing Collar | 2018-06-26 | Building Enclosure
SBC Umbrella Flashing w/Clamp, Fits 4 inch Pipe, Stainless Steel