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Home > Whole House Filters > Big Blue Whole House Filter Systems

Isopure Water (ISO-WH3-20B) Triple Stage 20" Big Blue Boy Whole House Filter

Isopure Water (ISO-WH3-20B) Triple Stage 20" Big Blue Boy Whole House Filter


Retail Price:: $625.50

Your Savings:: $325.51

On sale: $339.99$299.99 On Sale


Availability: Ships within 24-72 hours

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The Ultra-Clean Whole House Filter uses three stages of filtration to deliver purified water to your whole family. Perfect for either specialty filtration and/or extra filtration for that superb drinking quality water. Big Blue filter cartridges (20" x 4.5" aka Big Blue) and large 1" ports are used to reduce the pressure drop in any home. Our units come fully built and ready for installation.

So what makes these different than everyone else? Most competitors use a smaller filter cartridges (ex: 10" x 2.5") with smaller ports. Although these units may be fine for small homes or offices, they will not effectively remove all contaminants for larger homes that demand a high flow rate.

Pre-loaded Filter Cartridges:

  • 5 Micron Sediment Filter
  • (2) 10 Micron Carbon Block Filters


    • Sediment
    • Pesticides
    • Chlorine
    • THMs
    • Bad tastes
    • Odors
    • Turbidity
    • Herbicides
    • VOC (volatile organic compounds)
    • MTBEs
    • Much more!

    Filter Specifications:

    • Sediment Filter Life - 6-12 months
    • Carbon Block Filter Life - 40,000 Gallons or 12 months
    • Recommended Maximum Flow Rate: 8 GPM*


  • Filter Wrench
  • Metal Wall Mounting Bracket
  • Installation Instruction Included
  • 100% Satisfaction - 30 Day Money Back Guarantee
  • 2 Year Limited Manufacturer's Warranty


  • Maximum Flow Capacity: 40 GPM
  • Maximum operating pressure: 100 PSI
  • Operating temperature: 40-100oF
  • Dimensions: 28" height x 26" width x 8" depth

Related Info


Great Product
Strong top bracket but when bracket is flush mounted to the wall and the system has water in it the bottom of the filters touch the wall. This does not affect performance at all just a quick note.
Reviewed by: Andrew from Hillsboro. on 4/15/2014
No stains and better tasting water
Excellent system - i installed it for the entire house and there are no more stains on the shower doors after the water dries. The chlorine taste is gone, the coffee tastes better etc.. I installed it myself - simple! I recommend it!
Reviewed by: Erwin Hudelist from CA. on 9/11/2013
Perfect for Small Homes
I bought this product for my home. It removes bad odour, taste and chlorine content from the water. It is perfect.
Reviewed by: Sen Pag from Dallas, Texas. on 4/9/2012
Big Boy Performs Well
I bought this big boy for clearing the sediments from my ground water.......It performs very well. I had to buy special string wound filters because my ground water has a lot of that iron in the water but it worked perfectly...Highly Recommended!!!
Reviewed by: Moc Rany from Provo, Utah. on 3/30/2012


Questions & Answers

Q: what about uranium removal?
Asked by:  - 7/29/2014 (Submit an answer)
A: The filters included were not meant to remove uranium. You can purchase specialty filters to do that. But you'll need to know what state of ion you are dealing with.
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