Customer Reviews for Omni CB3-SS6-05 Carbon Block Undersink Replacement Water Filter Cartridge

Omni CB3-SS6-05 Carbon Block Undersink Replacement Water Filter Cartridge

Omni CB3-SS6-05 Carbon Block Undersink Replacement Water Filter Cartridge List Price: $41.94
Our Price: $22.99
You Save: $18.95 (45%)
Availability: Usually ships in 1-2 business days
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Category: Tools
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Tools and Hardware Reviews of Omni CB3-SS6-05 Carbon Block Undersink Replacement Water Filter Cartridge

Customer Review: Exceeded expectations
Summary: 5 Stars

This product arri ved within days of the order. Normally it may take weeks.

Customer Review: Filter does not fit.
Summary: 2 Stars

I purchased this cartridge to replace the original cartridge in my Omni CBF3 undersink filter unit. The new filter assembly is 0.0125" taller than the original assembly. The new filter uses thicker gaskets on the top and bottom surfaces. The taller filter will not allow the top and bottom halves of the canister to screw together sufficiently to compress the filter unit sealing o-ring.

As a result the canister now leaks.

Several emails to Omnifilter prompted a half-hearted response from a lady named Linda. The conversation follows:

Me: Explanation of the problem...

Linda: Please remove the gasket on the cartridge and re-insert the cartridge. This should stop the leaking.

Me: If I remove the gaskets there will be no sealing surface to force the water through the filter. The water will bypass the filter.

Linda: The water will still go through the filter without the gasket.

Me: Are you indicating that, without the use of the gaskets, the filter will make a WATERTIGHT seal with the upper and lower halves of the filter housing?

Linda: Yes.


The less-than-enthusiastic response led me to keep the old, thinner washers in the unit. So far, no leaks.

P.S. If my research is correct, this filter removes particles larger than 0.5 micron, whereas Brita filter pitchers only remove particles larger than 30 micron...60 times larger. My old socks filter water better than a Brita pitcher.

Customer Review: Great with Kenmore 34451 countertop filter
Summary: 5 Stars

Got the hard to find Kenmore 34451 from ebay and put this filter in it.. cheap setup that delivers great tasting drinking water that is on par or exceeds reverse osmosis units, the best I've ever tasted aside from water from natural springs.

Customer Review: NO SHOW
Summary: 2 Stars

They did not have in stock what they said they had. Other than that I thought they were wonderful.

Customer Review: No fuss no muss!
Summary: 5 Stars

Great product,extra fast delivery and great price for product...first time I ordered w/ other company was $$$$$...did a little research and w/ Amazon's help..Wala!
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