Roundup Dual Action 32 Oz. 1600 Sq. Ft. Concentrate Weed & Grass Killer COVERS UP Air vents allow for maximum

Air vents allow for maximum air ventilation through wall and floor openings

Configured for climates where incoming water temperatures are in the 60 F to 70F

and lint build-up)

Knurled nozzle

fences to include composite decks

Roundup Dual Action 32 Oz. 1600 Sq. Ft. Concentrate Weed & Grass Killer COVERS UP Air vents allow for maximumDual action formula that kills existing weeds and grasses down to the root. Prevents new weeds from growing for up to 4 months by creating an invisible barrier in the soil. Ideal to use on driveways, sidewalks, patios, around trees, landscaping areas, along fences, and gravel areas. For best results, apply during warm, sunny weather above 60 degrees Fahrenheit. Rainproof in 30 minutes. Visible results in 6 hours.