The Pumper Paint Markers – Yellow (Box of 12) The Pumper Paint Markers are a heavy-duty, industrial-grade solution designed for high-visibility, permanent marking across a wide range of surfaces . Featuring a valve-actuated paint system and durable aluminum barrel , these markers deliver consistent paint flow and reliable performance in demanding field environments. Formulated with high-opacity, quick-drying paint , The Pumper produces bold marks on wet, oily, rough, or dark surfaces , ensuring visibility in both indoor and outdoor conditions. The yellow variant provides maximum contrast on dark surfaces for safety and high-visibility marking. Supplied in boxes of 12 , they are ideal for field crews. Key Features Permanent, high-visibility paint for most surfaces Valve-actuated flow system for controlled marking Quick-drying, weather-resistant formula Performs on wet, oily, and rough surfaces Durable aluminum barrel for jobsite use