This paper reports the work on developing concentric tube-fouling rig. a new fouling deposit monitoring device. This device can detect and quantify the level of fouling deposit formation. It can also functioning as sampler for fouling deposit study. https://www.bekindtopets.com/super-grab-Wizarding-World-Hogwarts-Legacy-Main-Poster-iPhone-14-Plus-Clear-Case-p36756-quick-choice/