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The Milwaukee Electric Tool Corp 48-22-3761 is an INKZALL blue paint marker sold in a 12-unit pack. Paint markers in this class are designed for marking on surfaces common in trade work, including metal, PVC pipe, conduit, concrete, wood, and wet or oily materials. The INKZALL line is built for jobsite conditions where standard markers fail. Each marker delivers visible, opaque blue ink suited for layout lines, labeling, and service markings. This pack of 12 keeps crews stocked across multiple techs or service vehicles.
INKZALL paint markers are used across HVAC, plumbing, electrical, and general construction trades. They are well-suited for marking refrigerant lines, pipe runs, conduit routing, panel schedules, and duct sections prior to installation. The 12-pack format makes them practical for stocking a shop or distributing across a service team. Both indoor and outdoor applications are supported given the paint-based ink formula.
Designed as a general-purpose paint marker for use across HVAC, plumbing, electrical, and construction trade applications where a durable surface mark is required.
No licensed trade installation is required for paint markers. Shake the marker and depress the tip on a scrap surface before first use to prime ink flow. Store with the cap secured to prevent drying. Keep away from open flame, as paint marker ink may be flammable.
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