Industrial Redball 4-Column Tip Spray Monitor

The Industrial Redball 4-Column Tip Spray Monitor is a four-column, four-chamber, non-electronic flow indicator that visually confirms your spray flow across four lines, helping you detect plugged nozzles and worn tips at a glance. Its clear poly body houses bright indicator balls in each column, offering immediate feedback on flow without electronics or moving parts. The modular design lets you tailor the setup to your sprayer—4-column assemblies can be configured with a single 3/4" inlet and four outlets (1/4" hose barb ports), or you can swap to different inlet/outlet configurations as documented in industry parts catalogs. In addition to the modular version, Willmar Fabrication also markets a manifold spray monitor and squeeze-pump variants for different spray systems. Replacement parts and configurations are widely available through multiple suppliers. Five interchangeable ball sets let you match different flow rates to your application, making it easier to detect deviations across individual columns and spot leaks in hoses or damaged tips. The Redball monitor is designed for agricultural use, including liquid fertilizers and herbicides, and is built to resist chemical exposure with a robust, high-impact plastic body.