This product is the Calmag CalRo Carbon Block Cartridge for CalRo Unit RO-CALRO-CB1. This cartridge is used for the CalRo drinking water filter system. Calmag recommends replacing the filter every 6 months. When using the CalRo, Calmag recommends the following preventative maintenance. It is very important to follow the procedures below to ensure that your water system continues to function properly. Please note the approximate cartridge life is 6 months and the membrane is 2 to 3 years.

Changing the Prefilter: First, turn off the cold water supply and allow the system to depressurise for about 10 minutes. Using a filter wrench to unscrew the prefilter housing and remove the filter cartridge. Replace with a new prefilter cartridge; inspect the o-ring in the filter housing and lubricate it with silicone grease. Screw the housing back and go on to step 2.Changing the Pre carbon filter: Repeat the instructions as in 1.Changing the Post filter: Turn off the tank valve and open the drinking water tap to relieve the pressure. Close it and, using a filter wrench, unscrew the post filter housing and remove the filter cartridge. Inspect the o-ring in the filter housing and lubricate it with silicone grease. Screw the housing back on and go to step 4.Start up: Make sure that all the tubes are properly connected to the filters. Open the drinking water tap on the sink and the valve on the tank. Allow at least 1 gallon to run down the drain before closing the drinking water tap. Turn on the cold water supply and allow the system to pressurise.Changing the Reverse Osmosis Membrane: When replacing the membrane the prefilter and postfilter should also be changed. Follow steps 1, 2 and 3 then proceed to disconnect the compression fittings from the membrane and remove the mounting clips. Connect the new membrane and follow the instructions in step 4.It is recommended that the storage tank be emptied at least once a month. Open the tap to allow the water to drain until empty. Close the drinking water tap and the tank will refill in 10 to 12 hours.Product water should be tested once or twice a year to ensure that the membrane is removing the impurities adequately. This may be done by obtaining a water TDS meter.

Main product features:

• 10" cartridge
• Pre-filter for RO unit
• To protect the membrane
• Removes chlorine