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The square neck under the round head will seat into the hole in the wood to prevent the head from turning
safer than annealed glass
Spring tension adjusts for light or heavymarkings
High carbon spring steel wire
Imperial GV2280 Butterfly Damper, Galvanized SummerEndSale The square neck under theThe ideal back draft damper for solar, fresh air intake, heat exchangers and other air duct applications. Highlights: Finish: Galvanized Diameter: 6 inch Bathroom venting applications
US$ 103.00
US$ 101.00
US$ 111.00
US$ 196.00
US$ 114.00
