PENTEK-158649 3G Slim Line 1/2 Inch Clear Filter Housing with Pressure ReliefThe PENTEK 158649 3G Slim Line 1 2 Inch Clear Filter Housing with Pressure Relief is a useful filter for any water filtration need. This system can be used in partnership with reverse osmosis systems or function on its own as an undersink or whole house filtration component system. The clear housing allows for visual monitoring of your filter and water flow, giving you the peace of mind that your system is functioning properly and protecting your