16x8 in. Aluminum Grate Vent Mill

Updated August 10, 2026

Lot number	362r
Auction	1038 HOME IMPROVEMENT ~MILTON~
Date	August 12, 2026 at 3:00 PM EDT
Auction house	Rockey Auctions
Location	NORTHUMBERLAND, Pennsylvania

Brand: Master Flow Model: 500 Retail Price: $25 The GAF Master Flow 500 grate style foundation vent allows air circulation to reduce moisture and helps prevent decay in your foundation with a net free vent area of 28 sq. in. The vent is die-cast aluminum and features positive open/close damper action and lintel for foundation block construction. The damper adjusts manually. Automatic/Manual: Manual. Color Family: Silver. Color/Finish: Silver. Features: Built-in Screen. Intake/Exhaust: Exhaust. Material: Aluminum. Mounting Position: Wall Mount. Power Type: Non-Powered. Product Weight (lb.): 2.39 lb. Shape: Rectangular. Net-Free Area (Sq. In.): 28. Product Depth (in.): 2.75 in. Product Height (in.): 8 in. Product Width (in.): 16 in. Rough Opening Height (in.): 8. Rough Opening Width (in.): 16. Disclaimer : DISCLAIMER: This listing contains a stock image of the item to be auctioned, in order to illustrate the item’s design and functionality when new. However, this stock image is provided for ILLUSTRATION PURPOSES ONLY and cannot be relied upon by any bidder. Instead, actual photos of the specific item up for auction are provided within the gallery. Any written overview regarding features, operations, or capabilities reflects the item’s original specification when new and does not guarantee current condition or complete performance. The absence of any description by Rockey Auction of the item to be auctioned does not establish an implied representation that it is new or functional. It is a bidder's sole responsibility to inspect all actual product photos, read descriptions carefully, and perform any desired pre-bid inspections or inquiries. Bids placed constitute full acknowledgment and satisfaction with the item's condition along with Rockey Auction’s terms AND CONDITIONS of sale, which can be found in full in the tab below.

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