Isopure Water
Isopure Water (ISO-WH1-20B) Single Stage 20" Big Blue Boy Whole House Water Filter
$114.99
The Isopure Water ISO-WH1-20B delivers true whole house sediment filtration through a single-stage Big Blue system with oversized 20" x 4.5" cartridges and 1" ports engineered to maintain flow rates up to 8 GPM without pressure loss. This pre-assembled 5 micron sediment filter system handles the demands of larger homes where standard 10" x 2.5" filter housings fall short in capacity and performance.
SPECIFICATIONS
Filter Performance & Capacity
Cartridge Size
20" x 4.5"
Big Blue standard
Filtration Rating
5 Micron
Sediment removal
Flow Rate
8 GPM
Maximum recommended
Port Size
1" NPT
Reduced pressure drop
Filter Life
6-12 months
Usage dependent
Max Pressure
100 PSI
Operating limit
TECHNICAL DETAILS
ISO-WH1-20B System Specifications
| Model Number | ISO-WH1-20B |
| Dimensions (H x W x D) | 28" x 8" x 8" |
| Operating Temperature | 40-100°F |
| Maximum Operating Pressure | 100 PSI |
| Connection Type | 1" NPT threaded inlet/outlet |
| Removes / Reduces | Sediment, rust, dirt, oil, grease |
| Included Accessories | Filter wrench, metal wall bracket, installation instructions |
COMPATIBILITY & APPLICATIONS
Designed for High-Demand Residential Filtration
The ISO-WH1-20B is purpose-built for larger homes and applications where standard compact whole house filters create bottlenecks. The Big Blue 20" cartridge format offers significantly more surface area than 10" housings, extending service intervals and maintaining consistent pressure even during peak demand periods. Compatible with any 20" x 4.5" replacement cartridge, this system installs at the main water line to protect downstream fixtures, appliances, and secondary filtration stages from sediment damage. The 1" port sizing makes this system suitable for homes with multiple bathrooms, irrigation systems, or simultaneous high-flow usage patterns. Pre-loaded with a 5 micron sediment cartridge, ready to install out of the box.
💧 The difference between 10" and 20" Big Blue systems becomes obvious in homes with flow rates above 5 GPM. Undersized cartridges clog faster and create pressure drops that affect everything from shower performance to appliance efficiency.
