The Culligan WH-HD200-C Heavy-Duty Sediment Filter Housing allows you to preserve and protect your household plumbing and water-using appliances. Designed for installations where a 1-inch water main is present at the point of entry, this filter housing features a stainless steel reinforced inlet/outlet and cap for added durability. A filter life indicator is built into the filter head which alerts you when you need to change your filter cartridge. The large filter size provides 4 times the capacity where high sediment concentration is an issue.