One of the Critical Control Points in a hospital’s water management plan is ice machines. The DSU-H’s dual-stage design provides redundancy and up to 6 months of protection in a self-contained unit. The HydraGuard ultrafilter cartridge provides up to 6 month of protection and works with standard 10” cartridge housings with a 222 connector. The HydraGuard-F provides up to 12 months of protection with our unique forward-flushing design. Pictures of the back-flush water from DSU-H filters in the field for up to 6 months provide an indication of the what kind of particle density exists in potable water.