207290- HOUSING, FILTER, BLK/GRY, 4.5" X 20", SGL O-RING, NPR, 1" FNPT, SFH45, PENTAIR
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The Pentair (4.5 × 20) Filter Housing is engineered for high-capacity water filtration applications requiring extended cartridge life and strong flow rates. Its large-diameter design accommodates 4.5″ × 20″ Big Blue-style cartridges, making it ideal for whole-house, commercial, and light industrial systems.
Featuring a heavy-duty black sump and reinforced grey cap, this housing provides long-term durability and excellent chemical resistance. The top-seated Buna-N O-ring ensures a secure, leak-free seal, while the 1″ FNPT inlet and outlet connections support higher flow applications with minimal pressure drop.
Features:
- Large 4.5″ × 20″ Big Blue-style housing
- Heavy-duty black sump with reinforced grey cap
- Top-seated Buna-N O-ring for reliable sealing
- 1″ FNPT inlet and outlet connections
- Compatible with extended-life filter cartridges
- Durable polypropylene construction
- Ideal for residential, commercial, and high-flow filtration
Component Type: Single-Cartridge Filter Housing
Diameter: 4.5 in
Length: 20 in
Housing Material: Polypropylene (Black Sump / Grey Cap)
O-Ring Material: Buna-N
Maximum Operating Pressure: 90–100 psi (Typical)
Operating Temperature Range: 40 °F to 125 °F
Color: Black / Grey
Application: High-Capacity Water Filtration
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