Membrane Solutions 20" x 4.5" Big Blue Whole House System String Wound Sediment Water Filter

Pack: 4 Pack
Micron Rating: 20 Micron
Sale price$69.99 USD

Shipping & Warranty: Tax-free. Free 3-5 Days Shipping and One Year Warranty.

Return Policy: Eligible for Return, Refund or Replacement within 30 days of receipt.


  • 20" x 4.5" Standard Universal Size, fits most 20-inch filter housings
  • High-quality Filtration, 99%+ Removal Rate
  • 100% Safety Material, Meets NSF and CFR21 Certification
  • 60,000 Gallons Filtration Capacity, 4-6 Months Lifespan
  • Extend the Life of Your Whole House Water Equipment

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Amplified Filtration: String Water Filter With Greater Dirt-Holding Ability

Experience the superior benefits of our string wound water filter. With its remarkable FOUR times greater dirt-holding capacity and DOUBLE the flow rate compared to standard PP sediment filters, this whole-house string water filter can effectively remove 99% Rust, Silt, Sands, Colloids, Sediment, Particles, Color, etc. It's the ultimate choice when dealing with low-quality feed water rich in sediment.

Universal Compatibility: String Wound Sediment Filter for 20x4.5 Housings

Membrane Solutions string wound sediment filter, measuring 20" x 4.5" inches, boasts a standard size that effortlessly fits into most 20-inch filter housings. Ideal for prefiltration in whole-house string water filters and it also finds utility in numerous commercial and industrial settings.

20x4.5 inch string wound filter
20 inch string wound water filter

Double Flow, Quadruple Capacity: String Wound Sediment Filter Excellence

The string wound water filter boasts a unique honeycomb design, with a dense core and progressively looser structure towards the outer layer. This innovative depth filtration system captures larger particles at the periphery and gradually smaller ones closer to the core, significantly boosting the filter's capacity to trap impurities. Discover the superior performance of our string wound filter for unparalleled water purification.

Safe Filtration: Membrane Solutions BPA-Free String Water Filter for Whole House

Constructed from 100% Polypropylene material, our string wound filter is made with food-grade, non-toxic, and BPA-free components, ensuring safety and purity in water filtration for your whole house string filter needs. It guarantees a healthy and secure water-filtering experience with no risk of leaching or secondary pollution. For the specific filtration precision, you can choose 5/20 microns according to your needs.

20 inch string water filters
standard 20 inch string water filter

Reliable & Durable: Long-lasting 20x4.5 Inch String Wound Whole House Filter

Our string wound filter boasts an extended lifespan, capable of handling up to 60,000 gallons of water (4-6 Months). The lifespan and replacement frequency depend on the initial water quality. To ensure optimal performance, consider changing the string wound filter every 6 months.

Enhance Equipment Safety with Our 20x4.5 String Wound Sediment Filter

  • This 20-inch string wound sediment water filter is designed to effectively eliminate sediment, such as rust, silt, sand, and other non-dissolvable particles, achieving an impressive 99% removal rate. Serving as the initial stage in your whole house filtration system, this string wound filter safeguards your post-filters, water appliances, pipes, bathroom, and kitchen faucets, as well as shower fittings, from potential blockages. 

Frequently Asked About This 20" x 4.5" String Wound Sediment Water Filter

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