Franklin Water FWSW Series 4.5" OD Big Blue String Wound Filter Cartridges – FDA Polypropylene Sediment Filters for Rust, Sand, Scale & Silt Removal

Franklin Water FWSW Series 4.5" OD Big Blue String Wound Filter Cartridges – Precision Filtration for Clean Water

Keep your water clean, clear, and free of sediment with Franklin Water’s FWSW Series String Wound Filter Cartridges. Designed for 4.5" OD Big Blue housings, these high-performance cartridges are expertly engineered to reduce sand, silt, rust, and scale particles across a range of water filtration applications. Each cartridge is manufactured from 100% FDA-grade polypropylene cord wound around a rigid polypropylene core, ensuring reliable filtration with a low pressure drop.

Whether you're looking for effective sediment removal in potable water systems, reverse osmosis setups, or food and beverage applications, FWSW cartridges deliver consistent results. With multiple micron ratings and sizes available, they’re built to meet your specific filtration needs with precision and ease.

Key Features: Trusted Filtration, Built to Perform

• Efficient Particle Reduction: Captures fine to coarse sediment including sand, rust, and scale for cleaner, clearer water

• FDA-Grade Polypropylene: Constructed from food-safe materials ideal for potable water systems

• String Wound Design: Variable winding pattern provides precise micron ratings and superior sediment-holding capacity

• Low Pressure Drop: Maintains optimal system performance with minimal flow restriction

• Multiple Sizes & Ratings: Available in 4 standard lengths and micron ratings of 1, 5, 20, and 50 to suit various filtration needs

• Universal Fit: Compatible with most standard 4.5" Big Blue filter housings for easy installation and replacement

• Thermal Durability: Withstands temperatures up to 55°C (131°F) for dependable performance in warm environments

Ideal Applications: Versatile Protection Across Water Systems

• Potable Water Filtration

• Process and Cooling Water Treatment

• Food & Beverage Manufacturing

• Pre/Post Reverse Osmosis Filtration

• Chemical Processing Systems

• General Industrial Water Filtration

Reliable Sediment Filtration, One Cartridge at a Time

Choose Franklin Water FWSW Series for your water filtration needs and experience the benefits of high-quality string wound technology. Designed for durability and performance, these cartridges help protect your equipment, reduce maintenance, and ensure better water quality—whether at home or in demanding industrial settings.