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RC: Replaceable Cartridge
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Countertop Units
(Models CT & PCT)


WARNING: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the unit.


  1. Remove existing aerator from end of faucet.
  2. Connect diverter head faucet. If an adapter ring is needed, choose proper adapter and washer and install them to faucet (See A). Proceed to connect diverter head to adapter ring.
  3. Attach the free end of the tubing to the water filter by pushing the hose into the "quick connect" fitting at the bottom of the unit (Make sure tubing is pushed in as far as it can go). If the unit is provided with a sediment prefilter attach the free end of the tubing to the inlet side of the sediment prefilter and then proceed to attach the prefilter to the unit.
  4. Place unit so that the spout is facing towards the sink. Turn on main faucet (cold water only!)
  5. Divert the water flow by pulling the lever on the diverter body. It will take a few seconds before water will flow through the filter and out the spout. This will flush away any carbon fines. To insure all the air trapped in the unit is released you may pick up the unit and gently shake it while the water is running.
  6. Allow the water to run until water is clear (5 to 10 minutes). The filter is now ready for use.
How to Connect the Tube with Snap-on Fitting?
  1. Always cut the tube square, with a sharp cutting tool.
  2. Be aware that the first "resistance" you feel as you slide the tube into the receptacle, is not the one that indicates a solid connection has been made. This is the tube coming into contact with the O-ring. Gently push past this "resistance" (the O-ring) till the tube stop. You can tell by the feel that you've reached "the end of the line".
  3. The tube is now securely in position and won't come loose.
  4. When disconnecting, gently push the collets back toward the receptacle housing, while at the same time pulling the tube out of the housing. Now it's disconnected.
IMPORTANT: During the first few days, you may notice:
  1. Some water dripping out from the spout
  2. The filtered water looks milky/ cloudy, particularly in the mornings. This is a result of the filter not completely filled up with water and (1) air bubbles in the filter push the water out, and (2) air bubbles accumulated near the spout. When the faucet is turned on, air bubbles come out with the filtered water and make the water look milky/ cloudy. The water is completely safe for drinking. However, if you still feel uncomfortable, please let the water run for 10-15 seconds before use. The cloudiness in the water will disappear after the first few days.

IMPORTANT: Black chips/ powder may be found in your filtered water. These are loose granular activated carbon of food grade and are not harmful to health. It occurs (1) when a new filter is not flushed long enough (normally 5 minutes or more), or (2) when the flow rate is too fast (should be less than 1 gallon/minute). Should the filter continue to leak out black chips, please contact Arvani or their agent for inspection. A new filter will be replaced if any filter is found to be defective under manufacturer's warranty.
  • The unit is designed for use with COLD WATER ONLY.
  • The recommended flow rate for best results is 1/2 to 1 gallon per minute. Increased flow will reduce the unit's effectiveness.
HELPFUL HINTS: An activated carbon cartridge (Taste/Odor) may contain a small amount of carbon fines (very black powder) and a new cartridge, after installation, should be flushed with sufficient water to remove the fines before using the water.


IMPORTANT: A reduction in water flow or a change in the color or taste of the water, should be considered an indication that the filter is near the end of its useful life.

This model does not require much maintenance (Maintenance Free System). The actual length of time the main filter will effectively remove chlorine and other contaminants will mostly depend on the original quality of the source water, pH and amount of water used. However, the sediment cartridge in the pre-filter has to be changed when its colour changes from snow white to yellowish brown, or when the flow is slow.

HELPFUL HINTS: If the lever does not automatically bounce back after you turn the tap off, try using a few drops of cooking oil to lubricate the lever. This process should be carried out as soon as the problem appears.