Oatey Hercules® 10 oz. Firestop Caulk Size:10 Oz Check out this video for

Check out this video for easy

The metal ring provides added strength to the flange and can be rotated to allow precise alignment of bolts and screws

or 1-5/8" O D

Specifications and Approvals

Oatey Hercules® 10 oz. Firestop Caulk Size:10 Oz Check out this video forHercules plumbers Firestop Sealant is latex based and intended formulti purpose use. This intumescent sealant provides up to a three hour firerating and is designed for a wide array of firestop applications in smallcommercial or grouped residential construction or other structures withsimilar characteristics. Can be used in systems where dynamic movement isexpected: plumbing; HVAC; bath and dryer vents; metallic pipes; non metallicpipes, conduits and