Features
Product Features
Usually used as first stage for 20" BIG BLUE whole house filter. It is effective for removing dirt, rust and sand particles down to 20 micron, allows faster water flow than 5 micron filters. Depending on inlet water quality or flow rate, it needs to be replaced every 6 months or 100,000 gallons of water.
Product Highlights
- Made of Melt-Blown Polypropylene, 4-layer filtration
- Fits standard 20" BIG BLUE housings, including brand name models
- AvailabilityIn Stock
- Model FP220BX6
- Manufacturer iSpring
- Product Weight 21.0 LB
iSpring vs Other Brands
Feature



NSF/ANSI 58 Certification
Yes (full system certified)
Often partial or none
Verified performance & safety
Filtration Stages
Clear 3/4/5/7 stage options
Usually 4-5 stages
More complete options
Alkaline Remineralization
Available (RCC7AK/RCC7AK-UV)
Rare or expensive add-on
Better taste & pH balance
See-through 1st Stage Housing
Yes, smart flow sensor
Unavailable in most systems
Easy visual inspection
Daily Production
75 GPD (reliable output)
Often lower or overstated
Reliable daily production
Replacement Filters
Widely available & affordable
Hard or harder to find
Lower long-term cost
Installation
DIY friendly, no plumber needed
Can be more complex
Faster & easier set-up
Support & Warranty
Responsive support + solid warranty
Varies widely
Better post-purchase experience
Value for Money
High performance at competitive price
Higher price for similar specs
Better cost-effectiveness

