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iSpring WRO4000 6-Stage Whole House Reverse Osmosis System, Reduces TDS, Heavy Metals, PFAS, Fluoride, and 1000+ Contaminants, Auto-tune with Smart Sensors, 2:1 Pure to Drain, Up to 4000 GPD

Regular price $8,999.99
Sale price $8,999.99 Regular price $8,999.99
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In stock · Ships within 1–2 business days

iSpring WRO4000
$8,999.99

Features

Main
Filtration Media
RO
RT Monitoring
Less Waste
Smart
  • Covenient
  • Whole House
Experience
Support
Setup
  • Availability In Stock
  • Model WRO4000
  • Manufacturer iSpring
  • Product Dimensions 34.84"L x 33.27"W x 66.93"H
  • Product Weight 399.0 LB

Manuals

iSpring WRO4000 User Manual Download
WRO4000 Unboxing & Operation Guide 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

Reviews