Features
- Replacement Cycle
- Up to 6 months
- Up to 12 months
- Up to 12 months
- Up to 12 months
- xxxx
- xxxx
- xxxx
- Stage
- 1st
- 2nd
- 3rd
- 3rd
- xxxx
- xxxx
- xxxx
- Compatible SKU
- CW31
- CW31
- CW31
- CW31
- CW31
- CW31
- CW31
- Filter Function
- Removes solid particles
- Removes up to 99% of chlorine
- Removes Bacteria and Viruses
- Removes PFAS
- xxxx
- xxxx
- xxxx
- Filter Type
- Sediment Filter
- CTO Carbon Block
- CTO Pleated Filter
- Activated Carbon Fiber
- xxxx
- xxxx
- xxxx
- NSF Certified
- ✓
- ✓
- xxxx
- xxxx
- xxxx
- xxxx
- xxxx
Product Description
The iSpring CW31-PF 3-Stage RV Water Filtration System is SGS-tested to remove PFAS, delivering safer, cleaner water for campers and RVs. Built with 3/4" lead-free brass quick connectors and a robust tankless design, it integrates a three-stage filtration process to remove sediment, chlorine, odors, and up to 99.4% of PFAS, ensuring water safety and good taste while reducing reliance on bottled water. The system installs effortlessly without tools and features durable, leak-proof housings for reliable performance. Filters are easily replaced every 6-12 months (depending on usage), and the system is backed by a 1-year warranty and lifetime technical support for hassle-free maintenance and long-term confidence in your water quality.
- AvailabilityIn Stock
- Model CW31-PF
- Manufacturer iSpring
- Product Dimensions 16.0"L x 6.0"W x 14.5"H
- Product Weight 16.6 LB
Manuals
CW31 Manual.pdf
Download
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


FP15
FC15
FC15-BV
FC15-PF
F3-BV
F3-PF
F3-PFBV