just wondering if anybody is familiar with the "Genova final rinse "water softening cartridge that just connects to a hose and is supposed to give a spot free rinse.I've used the Mr. clean washer for the last 5 years and it worked great, but can't get new filters (at a reasonable price)anymore.At less than 20 bucks, I took a chance & ordered two,but was curious if anybody out there has tried them. Thank You