For standard 3-1/4 x 10 in duct. Damper spring controlled. Open/closing damper prevents outside elements from entering the vent Open/closing damper prevents outside elements from entering the vent Damper is spring loaded to keep damper closed when not... more
Best prices on Safavieh white harmony 10 spring, Plastic in Other Holiday Decor online. Visit Bizrate to find the best deals on top brands. Read reviews on Home & Garden merchants and buy with confidence.