• The duct opening sizes: 10"w X 6"h // Outside Dimensions: 11.8"w X 7.8"h // Made of Steel
• With Fly Screen Mesh - Protects against: mosquitoes, wasps, flies, spiders, bees, vermin and etc.
• Internal and external mounting. For sidewall or ceiling application. Durable zinc color finish.
• Designed To Cover Wall Or Ceiling Openings And Ducting Vents
• We do not know what type of screws you need - so the SCREWS ARE NOT INCLUDED.

Shipping Note: Shipping to Alaska, Hawaii, P.O. Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty