Kohler K-7265-BL - Tub Waste Accessory. Clearflo 1-1/2 Tub Drain Kit - with Overflow Product Specifications.Drain Connection: 1.5 in. Outlet Diameter: 1.5 in. ASME Code: A112.18.2. Where possible, we note damage and list missing accessories. These factors are reflected in the pricing of the item. Simply send us a message, and a resolution will be quick to follow.