Need another faucet mount filter that is not a PUR

This is now the second faucet mounted filter that has stripped out in less than a year. The first one made it 9 months before the adapter started to just blow off the faucet when we weren't even using the water filter. We didn't have the receipt so we bought another. This one made it 6 months then the change filter light stopped working. So we put the first one on since the adapter seemed to be doing just fine. Now the adapter is doing it again. I can't seem to find any replacement adapters, the kit only comes with one of each size/type. Not happy right now about this. No you would think I learned my lesson and kept the receipt, but I didn't.