How do you take the water filter out of the fridge (pure source 3) & can pure souce Ultra fit?

Thank you for your inquiry. The instructions on how to replace a water filter are listed below. It is not recommended that you install a different model filter than the one specified for your refrigerator. It is not necessary to turn the water supply off to change the filter. Be ready to wipe up any small amounts of water released during the filter replacement. 1 Turn Off the ice maker. 2 Remove the filter by pushing on the end/face of the filter. 3 Slide the old water filter cartridge straight out of the housing and discard it. 4 Unpackage the new filter cartridge. Using the alignment guide, slide it gently into the filter housing until it stops against the snap-in connector at the back of the housing. 5 Push firmly until the cartridge snaps into place (you should hear a click as the cartridge engages the snap-in connector). 6 Press a drinking glass against the water dispenser while checking for any leaks at the filter housing. Any spurts and sputters that occur as the system purges air out of the dispenser system are normal. 7 After filling one glass of water, continue flushing the system for about four minutes. 8 Turn On the ice maker. 9 Press and hold the Water Filter button on the Ice & Water Dispenser control panel for three seconds. When the display changes from “Red” to “Green,” the status has been reset. We hope this information is of assistance. Feel free to contact us directly via or via the Q&A forum on this website. -Best Regards-