The Frimarine Water Collecting Bowl FFWSCOBW is designed for use with Frimarine Fuel Filter / Water Separator model FFWS2003 and FFWS2007, also many recognized brands on the market such as Racor, Quicksilver, Mercury, Yamaha, Moeller, Mallory, Sierra and others. BOWL REPLACES: RK30475 18-7922-1 9-37884 Key Features: Made of reusable clear nylon, can easily see the water level, know when to drain water, durability. Removing unwanted muck and water. With a self-venting drain valve for draining out collected water. Prevents leaks and expedites service. Installation & Usage: Loosen drain screw to drain bowl of water. Tighten drain screw. Run engine and check for fuel leakage. Safety Warnings: Not for use with diesel engines. Always stop the engine and avoid open flames or sparks during installation or filter changes. Periodically inspect the system for leaks or damage. If unsure about installation, consult a marine service professional. Do not dispose of reusable components unless damaged.