Press down the WH-HD200-C red pressure-relief button. Take off the bottom of the WH-HD200-C housing. Clean the WH-HD200-C O-Ring and the O-Ring groove. These are located directly beneath the housing threads. Oil the Culligan housing O-ring with clean silicone grease. Replace the O-ring into the groove. Screw the housing back into the filter head.. The Culligan WH-HD200-C is best for households dealing with silt or sediment. Don't expect out and out filtration from the unit since it does not remove harmful contaminants, pollutants, insecticides, chlorine, or other unwanted elements. To sum up, it's a basic unit that works as advertised. So, if you are on a budget and your primary.
Manuals + Support - WH-HD200-C. Product Manual. Need More Support? Ask Our Team! Subscribe to our newsletter.. Stay up to date with the latest on Culligan DIY products and resources. Your email. Subscribe. Our Network. Culligan Dealer Locations; ZeroWater; ProOne. The Culligan WH HD200 C does an excellent job of removing large particle-sized contaminants from your tap water and will do that for an affordable price. There is no way though that I would recommend you to buy this product if you are looking to do more than just remove sediment from your home's water supply.