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

Durable Construction: Crafted from heavy-duty cast aluminum

and efficient water removal for your parapet wall

Heavy Duty ABS Cyclolac Dome Strainer: The included heavy-duty ABS Cyclolac dome strainer effectively filters out leaves

Simple Retrofit Design: The insert design slides easily into your existing drain pipe for a hassle-free installation

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.