United Filters International 20" x 4.5" Big Blue Depth String Wound "UP Series" Polypropylene Sediment Filter Less than 1 Micron1951 while the weatherproof NEMA 3R

while the weatherproof NEMA 3R enclosure allows mounting in damp or outdoor environments

This prevents residual pressure from forcing water out during disconnection

5% Rejection 4" × 14" 20 ft² Active Area

🛡️ Opaque Shell Protection

reusable pleated cartridge with 100% synthetic media for well water and whole-house sediment filtration

United Filters International 20" x 4.5" Big Blue Depth String Wound "UP Series" Polypropylene Sediment Filter Less than 1 Micron1951 while the weatherproof NEMA 3RThe United Filters International UP Series 20" x 4. 5" Big Blue depth string wound filter delivers true depth filtration with exceptional dirt holding capacity across micron ratings from 1 to 100 micron. Engineered from 100% polypropylene using a continuous high speed wind process, this cartridge handles aggressive chemicals, extreme temperatures up to 200F, and demanding whole house, well, or commercial applications. SPECIFICATIONS Core