Nelsen NWS Backwashing Filter Unit with Bypass

The NWS 10x44 Filter Unit with Bypass, also listed as NWTS-AFB-10, is a backwash-only filtration assembly from Nelsen Water Treatment Solutions, ready to be loaded with the media of your choice. Backwashing filters periodically reverse the direction of flow to lift, rinse, and re-settle the media bed, flushing trapped sediment and contaminants to the drain and restoring filtration capacity automatically—without chemicals, salt, or significant hands-on effort from the homeowner. That self-cleaning action is what lets a media filter keep performing between media changes.

This unit centers on a Nelsen 1" three-cycle backwash filter valve, paired with a bypass valve for easy service isolation, a black polyglass mineral tank, a basket distributor, and a gravel underbed for media support and even flow distribution. It ships as a hardware platform, which means filter media and plumbing connections are ordered separately so you can tailor the system to your specific water problem—whether that is sediment, iron, taste and odor, or pH correction. This build-it-your-way approach avoids paying for media that may not suit your conditions.

Unit features

• Nelsen 1" three-cycle backwash filter control valve
• Built-in bypass valve for easy service isolation
• 10x44 black polyglass mineral tank
• Basket distributor and gravel underbed included
• Filter media and plumbing connections sold separately
• Approximately 33 lbs as configured

The 10x44 size suits smaller homes or lower-flow applications where a full-size tank would be more capacity than needed. To put it to work, select a media that is compatible with backwashing, set the valve's cycle times to match your water conditions and usage, and ensure you have an adequate drain available for the backwash discharge. Proper sizing of both the media and the backwash flow is key to getting long, trouble-free service from the unit. Flexible and configurable, this assembly gives installers a proven tank-and-valve foundation that can be tuned to solve a wide range of common water-quality issues, making it a versatile choice for custom residential filtration. Compact yet fully capable, the 10x44 AFB unit is an excellent foundation for tackling everyday water problems in smaller homes with a clean, custom-built filter. Its modest footprint makes it easy to place even where space is limited.