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Isopure Water

Isopure Water (ISO-WH2-20B) Dual Stage 20" Big Blue Boy Whole House Filter

Product Code ISO-WH2-20B

$269.99 $299.99

The Isopure Water ISO-WH2-20B is a dual-stage whole house water filter system built around oversized 20" x 4.5" Big Blue cartridges and 1" NPT ports to deliver high flow rates without pressure loss. Pre-loaded with a 5-micron sediment filter and 10-micron carbon block, this system reduces sediment, chlorine, VOCs, pesticides, and herbicides at every tap in your home or office.
SPECIFICATIONS

ISO-WH2-20B Performance Data

Maximum Flow
40 GPM
Recommended continuous: 4 GPM
Filter Cartridge Size
20" x 4.5"
Big Blue standard
Port Size
1" NPT
Minimizes pressure drop
Carbon Block Life
20,000 gal
Stage 2 replacement interval
Sediment Filter Life
6-12 mo
Stage 1 replacement interval
Operating Pressure
100 PSI
Maximum rated pressure
TECHNICAL DETAILS

System Dimensions & Operating Parameters

Model Number ISO-WH2-20B
System Dimensions 28" H x 15" W x 8" D
Operating Temperature 40–100°F
Maximum Operating Pressure 100 PSI
Connection Type 1" NPT male inlet/outlet
Filter Stage 1 5 micron sediment (20" x 4.5")
Filter Stage 2 10 micron carbon block (20" x 4.5")
COMPATIBILITY & APPLICATIONS

Ideal Use Cases for the ISO-WH2-20B

This system works well in medium to large homes, offices, or light commercial applications where backwashing filters are not practical due to space, drainage, or electrical constraints. The oversized 20-inch Big Blue cartridges handle higher sediment loads and flow demands than standard 10-inch housings, making this a solid choice for well water with moderate sediment or municipal supplies with chlorine taste and odor issues. The dual-stage design captures particulate in the first housing and addresses chemical contaminants in the second, reducing clogging and extending carbon block life. Comes fully assembled with metal wall bracket, filter wrench, and installation instructions. Replacement cartridges are industry-standard 20" x 4.5" Big Blue format, available from multiple suppliers.

💧 The 1-inch ports on the ISO-WH2-20B are critical for homes with high simultaneous demand. Undersized ports create friction loss that no amount of filter surface area can overcome, especially during peak use like morning showers or lawn irrigation startup.


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