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Watts Pleated 20'' x 4.5" Cyst Filter - 1 Micron


Watts Pleated 20'' x 4.5" Cyst Filter - 1 Micron
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in stock
Ships by Tomorrow 3/30/2015

The Watts Pleated 20'' Cyst Filter Cartridge (Watts FM-BB-20-1A) is a 20"L x 4 1/2"D pleated water filter replacement cartridge used primarily in whole house water filter systems to reduce cysts (99% of Cryptosporidium and Girdia) though it will also reduce other contaminants such as sediment, dirt, turbidity, limescale, rust, sand, silt, and other common particulates down to the 1 micron level.

This Watts Flo-Max pleated water filter uses advanced synthetic pleated polyester filtration technology for a larger filter surface area, longer cartridge life, higher flow rate, greater dirt holding capacity, lower pressure drop, and more efficient cyst and sediment filtration when compared to other filters which use different types of filter media such as resin, melt blown, spun, string wound, etc. The 100% synthetic cellulose-free pleated polyester media does not contain binders or additives. Because it is a Full Flow filter with a large diameter (4.5"), the Watts FMBB201A features higher flow rates than standard diameter (2.5") filters.

Watts Flo-Max 20" Pleated Cyst Water Filter Specifications (FM-BB-20-1A):

  • Micron Rating: 1 Micron
  • Max. Pressure: 40 PSID
  • Filter Life: Approx. 6 months
  • Temperature Range: 40 - 140 F
  • Dimensions: 20"L x 4.5"OD Full Flow
  • Filter Media: Cellulose-free synthetic pleated polyester
  • Max. Flow Rate: About 15 gallons per minute (15 GPM), though it varies according to the specific filter system used

This Watts pleated filter is a compatible replacement cyst filter cartridge for similar pleated filter brands of all types including Pentek filters, Ametek filters, Culligan filters, Whirlpool filters, US Filter filters, Ace filters, American Plumber filters, Bruner filters, Plymouth filters, Pentair filters, and other name brands. It will fit all whole house filter housings which use a 20" x 4.5" Full Flow water filter replacement cartridge.

More technical information about Watts Flo-Max Series water filters can be found here.

The Watts FM-BB-20-1A is also known by part number US70241.


Watts Pleated 20'' x 4.5" Cyst Filter - 1 Micron Product Reviews :

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Number of reviews : 1
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  •   Awesome Filter
    Jessie - Indiana  

    I live in rural Indiana with extremely hard water and clear iron. I bougt this filter to replace the original sediment filter that came with my whole house filtration system. I've had my system only about 4 months and I am starting to see iron and hard water build up on my appliances, showers, toilets and washing maching. The original sediment filter was a 20 micron filter. I decided with the money I was saving buying from, I'd spend a little extra and upgrade to this 1 micron filter. Since I am living on a well I am assming the cyst filtration qualities of this filter will be a benefit. A quick unscientific way to check for clear iron in your water is to put some bleach in a glass of water and it will immediately begin turning a rust color. (this is why ppl with well water tend to have dingy looking whites and it gets worse if they use bleach to 'fix' the problem) I've had this filter installed for 24 hours, I done a few loads of laundry, loads of dishes and the whole family has showered so I feel the water we are using is definitely water filtered by this new filter. I took a glass with water and poured bleach into it and even after letting it sit for hours, there is NO signs of any reddish color from clear iron. I am shocked!! And I am so so so thankful I took a chance on buying this filter. I'm not sure if this filter will make it an entire 6 mos before needing replaced but I'm so glad I have this filter. I am once again in love with my whole home filtration system.

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