Nelsen 12x48 Filter Unit

The Nelsen 12x48 Filter Unit is a compact backwash-only filtration system built for whole-house water improvement in residential settings. Engineered around a durable black polyglass mineral tank, it pairs proven hardware with a simple, automated backwash routine that keeps your media bed clean and flowing freely. This configuration ships ready for the media of your choice, making it a flexible foundation for tackling sediment, taste, odor, and a range of common water-quality concerns throughout the home.

Automatic Backwash Performance

At the heart of the system is the Nelsen C-Series EE 1" three-cycle backwash filter valve, a reliable control head that periodically reverses flow to lift trapped particles and redistribute the media. The included basket distributor and gravel support bed ensure even water distribution across the full bed and help prevent media loss, while the bypass valve lets you isolate the unit for service without shutting off water to the rest of the house. Because the system cleans itself on a set schedule, day-to-day attention is minimal.

• 12" x 48" black polyglass mineral tank for long-lasting corrosion resistance
• Nelsen C-Series EE 1" 3-cycle automatic backwash valve
• Bypass valve included for easy maintenance and servicing
• Basket distributor with gravel support bed for even flow
• Approximate shipping weight of 55 lbs, packaged for parcel delivery
• Filter media and plumbing connections ordered separately

Because the media is selected separately, this Nelsen filter unit adapts to your specific application, whether you are installing activated carbon for chlorine and odor reduction or a specialty media for other challenges. The 12x48 footprint is well suited to smaller and medium-size homes on municipal or well water, fitting easily into utility rooms, basements, and garages. Order plumbing connections to match your installation, choose your media, and you have a dependable, low-maintenance backwashing filter. It is a smart starting point for installers and homeowners who want a customizable whole-house filtration platform from a trusted name in water treatment.

For best results, size the system to your peak flow and have your water tested so the appropriate media can be matched to your specific contaminants. A correctly configured backwashing filter rewards owners with consistent flow, clearer water, and a long, trouble-free service life with little more than occasional media attention. As a trusted Nelsen system paired with proven Nelsen control hardware, it brings professional-grade filtration within reach of homeowners and installers alike.