The Atlas Filtri DP BIG Trio 20" x 4.5" Filter Housing Kit is a premium, patented, Italian-made whole-house water filtration system designed to deliver high-performance, multi-stage filtration for residential and light commercial applications. Its innovative single-block manifold design houses three large-capacity filter cartridges in one integrated unit, reducing potential leak points while simplifying installation and maintenance.
Designed for maximum flow and customizable filtration, this system allows you to build a complete water treatment solution tailored to your home's unique water quality needs.
Holds three standard 20" x 4.5" ("Big Blue") filter cartridges
Patented single-block manifold minimizes leak points and improves reliability
High-flow design supports up to 15–20 GPM while maintaining household water pressure
Integrated pressure gauges monitor filter performance and indicate when cartridges need replacement
Built-in drain valves simplify maintenance and filter changes
Heavy-duty construction engineered for long-lasting durability
Made in Italy
Atlas Filtri DP BIG Trio Filter Housing
Integrated pressure gauges
Built-in drain valves
Heavy-duty mounting bracket
Housing wrench
Food-grade O-ring lubricant
Installation hardware
Whole-house water filtration systems
Private well water systems
Municipal (city) water filtration
High-flow residential homes
Light commercial applications
Custom multi-stage filtration systems
For the best filtration performance, we recommend a three-stage approach:
Stage 1 – Sediment Filtration
Removes larger particles such as sand, dirt, rust, and debris to protect downstream filters.
Stage 2 – Fine Filtration
Captures finer sediment and suspended particles for improved water clarity and system protection.
Stage 3 – Carbon Filtration
Reduces chlorine, unpleasant tastes and odors, and other contaminants to provide cleaner, better-tasting water throughout your home.
Recommended Use:
Install at the main water line entering your home to provide comprehensive whole-house water filtration. The DP BIG Trio's modular design allows you to customize filter combinations based on your specific water analysis, making it an ideal solution for both well water and municipal water systems.
The Atlas Filtri DP BIG Trio 20" x 4.5" Filter Housing Kit is a premium, patented, Italian-made whole-house water filtration system designed to deliver high-performance, multi-stage filtration for residential and light commercial applications. Its innovative single-block manifold design houses three large-capacity filter cartridges in one integrated unit, reducing potential leak points while simplifying installation and maintenance.
Designed for maximum flow and customizable filtration, this system allows you to build a complete water treatment solution tailored to your home's unique water quality needs.
Holds three standard 20" x 4.5" ("Big Blue") filter cartridges
Patented single-block manifold minimizes leak points and improves reliability
High-flow design supports up to 15–20 GPM while maintaining household water pressure
Integrated pressure gauges monitor filter performance and indicate when cartridges need replacement
Built-in drain valves simplify maintenance and filter changes
Heavy-duty construction engineered for long-lasting durability
Made in Italy
Atlas Filtri DP BIG Trio Filter Housing
Integrated pressure gauges
Built-in drain valves
Heavy-duty mounting bracket
Housing wrench
Food-grade O-ring lubricant
Installation hardware
Whole-house water filtration systems
Private well water systems
Municipal (city) water filtration
High-flow residential homes
Light commercial applications
Custom multi-stage filtration systems
For the best filtration performance, we recommend a three-stage approach:
Stage 1 – Sediment Filtration
Removes larger particles such as sand, dirt, rust, and debris to protect downstream filters.
Stage 2 – Fine Filtration
Captures finer sediment and suspended particles for improved water clarity and system protection.
Stage 3 – Carbon Filtration
Reduces chlorine, unpleasant tastes and odors, and other contaminants to provide cleaner, better-tasting water throughout your home.
Recommended Use:
Install at the main water line entering your home to provide comprehensive whole-house water filtration. The DP BIG Trio's modular design allows you to customize filter combinations based on your specific water analysis, making it an ideal solution for both well water and municipal water systems.
