Selkirk® by Duravent - Round Vent Increaser, 3 x 4 in Dia

Selkirk® by Duravent - Round Vent Increaser, 3 x 5 in Dia

Selkirk® by Duravent - Round Vent Increaser, 3 x 6 in Dia

Selkirk® by Duravent - Round Vent Increaser, 4 x 5 in Dia

Selkirk® by Duravent - Round Vent Increaser, 4 x 6 in Dia

Selkirk® by Duravent - Round Vent Increaser, 5 x 6 in Dia

Selkirk® by Duravent - Round Vent Increaser, 6 x 8 in Dia

Approved Vendors - DWV Metal Ring Closet Flange, 4 in, Hub, ABS

Kohler® - Disposal Flange With Stopper, Metal, Polished Chrome

Insinkerator® - SMG-00 Standard Mounting Gasket, Rubber