Grate Extender for Deck Drains Thread Size:3.5" Threads and 6" drain sizes to

and 6" drain sizes to accommodate various commercial roof drain requirements and drainage system specifications across different building types and roof areas

TPO Clad Stainless Steel Drain

and musty odors with strategically placed copper foundation vents

Seamless Basin

Available with optional brass elbow

Grate Extender for Deck Drains Thread Size:3.5" Threads and 6" drain sizes toExtends thread pattern grates an additonal 2". These grate extenders can be threaded into each other to reach any desired height. Two sizes to choose from 2" thread pattern for our: 4" & 5" Round Grates, and 5"x5" grates 3. 5" thread patter for our: 6" Round, and 6"x6" grates.