PureT B908-BNA Series
20" Big Blue Double O-Ring Filter Housing with Pressure Gauge Port
NSF-certified polypropylene housing engineered for high-flow residential, commercial, and industrial filtration systems
1" NPT Ports
100 PSI Max
FDA-Grade Polypropylene
1/4" NPT Gauge Port
The PureT B908-BNA housing combines reinforced polypropylene construction with dual O-ring sealing for reliable performance in demanding whole-house and commercial applications. The integrated 1/4" NPT pressure gauge port allows real-time monitoring of differential pressure across the filter cartridge.
SPECIFICATIONS
Housing Design & Capacity
| Model Number | B908-BNA |
| Cartridge Size | 20" x 4.5" diameter |
| Port Size | 1" NPT inlet/outlet |
| Gauge Port | 1/4" NPT threaded |
| Maximum Pressure | 100 PSI |
| Temperature Range | 40°F to 100°F |
| Housing Material | FDA-grade polypropylene, NSF-certified |
| Seal Design | Double O-ring configuration |
| Mounting Points | Four molded bosses per cap |
| Pressure Relief | Inlet cap button included |
COMPATIBILITY
Filter Cartridge Options
The B908-BNA accepts all standard 20-inch Big Blue cartridges with 4.5" outer diameter, including sediment, carbon block, pleated polyester, and specialty media filters. The dual O-ring design ensures a secure seal with cartridges featuring single or double gaskets. Thicker polypropylene walls provide increased durability and chemical compatibility for post-RO applications, iron filtration systems, and chemical injection setups. Mount the housing vertically or horizontally using the four integrated mounting bosses on each cap.
