Titan 103-625 Rock Catcher Assembly

Rock Catcher Assembly for Graco Line Stripers and Sprayers

The Graco 103-625 Rock Catcher Assembly is a filtration component designed to capture debris and aggregate before it enters the fluid path of compatible line striping equipment. On ProMark II, PowrTwin 3500, PowrLiner 2800, Commander, and Admiral models, this assembly sits inline to intercept rocks, grit, and other contaminants that can be picked up during application. By trapping these particles early, the rock catcher helps prevent damage to critical internal components such as pumps, valves, and spray tips. It also reduces the frequency of clogs that interrupt workflow and require cleanup. The assembly consists of a durable housing and a collection chamber that can be emptied or cleaned as needed during routine service. Over time, accumulated debris can reduce flow efficiency or allow particles to bypass if the unit is not maintained. Replacing a worn or damaged rock catcher assembly restores proper debris management and ensures material flows cleanly to the spray tip. This helps maintain consistent line quality and extends the service life of downstream components. The assembly installs directly into the material hose line and is designed for straightforward service access. Operators working in environments with unpaved surfaces, gravel shoulders, or aged pavement will find this component essential for reliable operation. Inspecting the rock catcher regularly and replacing it when the housing shows signs of wear, cracking, or when it no longer seals properly will help keep the system running without unexpected interruptions. Using a functional rock catcher assembly is a practical step in protecting the investment of the sprayer and reducing downtime related to debris-induced failures.