WaterSentinel WSG-3 Refrigerator Replacement Filter: Fits GE MSWF Filters Made from Coconut Shell Carbon Made in US Quick, 1-step installation with the same OEM performances. Replace your water filter every 6 months. In additional 15-20 degree turn when installing the filter.Refer to the PDF attached below in Technical Specification for Manuals. Get the best crystal clear drinking water; NSF 42 certified to remove chlorine and other contaminants WQA Gold Seal Certified. Filter fits:  GE MSWF, 101820/A, 101820A, 101821-B, 101821B. 238C2334P003, AP3997949, MSWF3PK, MSWFDS, PC46783, PS1559689, WR02X12345, WR02X12801, also fits Kenmore 9914, 46-9914 WaterSentinel brand ensures the highest standard of contaminant retention, including filtering out most of chlorine, cysts, rust, corrosion, sediment, and turbidity. 90 Day warranty against manufacturer defects from date of sale with invoice from WaterSentinel. For Customer Service call 866-218-8473 Made in US WQA Gold Seal Certified to NSF 42 Economical alternative to expensive substitutes Reduces sand, silt, sediment, rust, chlorine taste and odor that may be present in your drinking water Designed to provide up to six months of life or 300 gallons Proudly Manufactured in America with US based customer service