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The WOOSTER BRUSH RR394-4 is a trim paint roller kit designed for applying paint to narrow surfaces, trim work, and detail areas. The kit includes a paint tray, roller cover, and roller frame, giving installers and painters everything needed to start a trim application job without sourcing components separately. The roller cover features a 0.375-inch nap depth, suited for smooth to lightly textured surfaces. This kit is a compact, all-in-one solution used by painting contractors and maintenance professionals working on interior or exterior trim applications.
This kit is intended for trim and detail painting tasks where a standard full-size roller is too large. Typical applications include door frames, window casings, baseboards, and narrow wall sections. The included tray accommodates the smaller roller frame for controlled paint loading. It is commonly used in residential repaint work, light commercial maintenance, and new construction finish stages where trim surfaces require a clean, even coat.
Designed as a self-contained trim roller kit for general paint application on smooth to lightly textured surfaces including interior and exterior trim, casings, and baseboards.
No mechanical installation is required for this product. Load the roller cover by rolling it through paint in the included tray, using the ridged tray surface to distribute paint evenly across the nap. Ensure the roller cover is seated firmly on the frame before use. Follow paint manufacturer guidelines for surface preparation, dry times, and coverage rates.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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