8 in. x 8 in. Galvanized Steel Adjustable Chimney Cap in Black
97% off and 5 in stock. One markdown away from a penny tag.
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Scanning Home Depot stores hourly. 9 active Master Flow finds as of right now.
Master Flow
98% off · deepest active 
Master Flow Find of the day
2.67 in. x 50 ft. Zinc Moss and Mildew Preventer Strip
98% off and 5 in stock. One markdown away from a penny tag.
More Master Flow finds today · 8 more
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19.25 in. x 19.25 in. Square White Aluminum Automatic Shutter Gable Louver Vent
97% off and 53 in stock. One markdown away from a penny tag.
2.67 in. x 50 ft. Zinc Moss and Mildew Preventer Strip
97% off and 5 in stock. One markdown away from a penny tag.
19.25 in. x 19.25 in. Square White Aluminum Automatic Shutter Gable Louver Vent
97% off and 13 in stock. One markdown away from a penny tag.
Universal Manually Adjustable Thermostat for Power Vent
95% off and 5 in stock. One markdown away from a penny tag.
19.25 in. x 19.25 in. Square White Aluminum Automatic Shutter Gable Louver Vent
94% off and 20 in stock. One markdown away from a penny tag.
8 in. x 8 in. Galvanized Steel Adjustable Chimney Cap in Black
94% off and 3 in stock. One markdown away from a penny tag.
4500 CFM 24 in. Direct Drive Whole House Fan with Shutter
93% off and 2 in stock. One markdown away from a penny tag.
About Master Flow
Home Depot marks Master Flow Master Flow products through a predictable four-step cycle: 25% off → 50% → 75% → penny pricing ($0.01). Most Master Flow markdowns aren't advertised — they only show up on the shelf tag or in the Home Depot app.
Endless scans the full Home Depot catalog hourly across 1,990+ US stores. Sign up to filter Master Flow by markdown stage, store, and discount depth — and get email alerts the moment a new drop is detected.
Other brands
60 more brands tracked at Home Depot. Each has its own page with current finds.
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