This video shows how to remove difficult Moen shower valve cartridges. Thanks to hard water, these cartridges can be very difficult to replace which is the reason is invented my cartridge puller attachment. If the handle on your shower becomes difficult to turn, hard water is likely to blame. Here is my website where you can learn more: http://lakeviewpuller.com/

Click here to watch this tool in action out in the field:    • Tool for pulling tough Moen shower va...