This Waukesha water treatment customer knew who to call when it came time to replace his Iron Curtain equipment. Having previously had a Noritz tankless water heater installed by S&K and being satisfied with it, he again trusted S&K to solve his water problems. S&K installed a Crystal Clear model SK106AIMD25F-UC air inject iron filter and a GE Avantapure model APUF-48 water softener. When it comes to water, one call does it all!