William P Springfield , VA October 24, 2014 Appliance: General Electric Refrigerator GSH25JFXJWW Ge Refrigerator Gsh25jfxjww: Water line rattled at back of refrigerator as if it had air in it and water spurted out. How to replace Mwf Manifold. By replacing the filter holder with the O-rings on it (MWF Manifold & Tubes Assembly). The part fit exactly and the attached tubing had the correct fittings pre-attached which made for simple installation. 18 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes