203649- HOUSING, FILTER, BLK/BLU, 4.5" X 20", SGL O-RING, NPR, 1" FNPT, PENTAIR
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The Pentair 4.5″ × 20″ Filter Housing is designed for high-capacity sediment and carbon filtration in residential, commercial, and light industrial water treatment systems. Featuring a single O-ring design, this housing provides secure sealing and dependable leak resistance for consistent system performance.
Constructed with a durable black sump and blue cap, this non-pressure relief (NPR) housing includes 1″ FNPT connections for straightforward installation into larger flow applications. Its “Big Blue” style configuration allows for use with standard 4.5″ × 20″ filter cartridges, supporting higher flow rates and extended service intervals.
Features:
- 4.5″ × 20″ high-capacity filter housing
- Single O-ring design for secure sealing
- 1″ FNPT inlet and outlet connections
- Non-pressure relief (NPR) configuration
- Compatible with standard 4.5″ × 20″ cartridges
- Durable black sump with blue cap
- Suitable for residential, commercial, and light industrial systems
Housing Type: Big Blue Filter Housing
Diameter: 4.5 in
Length: 20 in
O-Ring Type: Single O-Ring
Pressure Relief: No (NPR)
Connection Size: 1 in FNPT
Material: Reinforced Polymer
Application: Water Filtration Systems
Manufacturer: Pentair
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