I received calls every day about KRYSTAL PURE reverse osmosis filtering systems, many concerning filter changes - so I created a series of short videos on how to do an R.O. filter change. I actually changed the filters on my KR15 system while filming! I hope you find this information helpful. br br The krystalpureguy is not associated with the manufacturer, AMERIFLOW WATER SYSTEMS, or the retailer, LOWE'S, in any way other than the fact that I used to work for both of them and know them both well, and I am not responsible for their products or the level of customer service they provide. This site is maintained as a CUSTOMER SERVICE TOOL to attempt to answer your questions when you can't get help from the manufacturer or the retailer. If you have specific questions, email them to krystalpureguy@gmail.com and I'll try to steer you in the right direction. br If you have questions concerning REPLACEMENT PARTS, CONTACT THE MANUFACTURER at 1-888-579-7873.