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The WOOSTER BRUSH RR373-4 1/2 is a 3/16-inch nap miniroller cover designed for smooth, consistent paint application in professional finishing work. Sold as a 2-pack, this Jumbo-Koter cover features Wooster's HydroFlow technology, which allows the cover to release paint evenly across the surface without skipping or puddling. The dense fiber construction resists shedding and matting during use, reducing downtime spent removing lint from a freshly painted surface. Painters and finishing contractors install this cover on a standard miniroller frame for trim work, cabinet faces, and other detail surfaces that demand a flawless result.
This miniroller cover is suited for residential and light commercial painting applications where a short nap is required for smooth or lightly textured surfaces. It is compatible with oil-based and water-based paints, stains, and enamels, making it a versatile choice for interior trim, doors, and furniture. The 2-pack format is practical for crews running multiple frames or for swapping covers between coats without interrupting workflow.
Designed for use on standard Jumbo-Koter miniroller frames. Fits trim and detail roller applications where a 4.5-inch wide, 3/16-inch nap cover is specified.
A licensed painter or finishing professional should seat the cover fully on the miniroller frame before loading with paint to prevent slippage during application. Remove the cover from the frame for cleaning or disposal after use. When working with solvent-based coatings, ensure adequate ventilation per applicable safety guidelines. Do not force the cover onto an incompatible frame size, as this can distort the nap and affect finish quality.
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