Harley H Okc , OK November 23, 2014 Appliance: Roper Refrigerator RT18VKXJW00 Roper Refrigerator Rt18vkxjw00: Refrigerator ice maker & water valve. How to replace Water Inlet Valve. Went to pick up ice maker at appliance parts store, I ordered water valve from Pros and it was sent extremely quick, but I also needed ice maker 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes