Buzzman sorry for the delay in a response but I had issues with the PUR filter. first the water pump works fine but the Filter that I bought did not work well with the sink design. the first filter I bought leaked….the washer or something inside the unit did not seal right and no matter how tight I tightened the filter water still shot out all over the place. so I returned it. The new unit works better with the angle on the sink spout and no leaks see the photo. so with trial and error. the New PUR filter works great……It was on sale at OSH for $21.00 not bad considering the price for other systems.