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    Warranty Guarantee: Three (3) year Limited Warranty
    USWF Water Treatment

    USWF-RCB4.01

    RCB4.01 USWF UV Disinfection System | Replacement Controller for USWF-4CR1

    Low Stock (1)

    🚚UPS Ground Delivery
    Order within 1 hour(s) 17 minute(s) and you will receive your order between 08/11/2025 and 08/14/2025
    Seller ships within 1 day.

    Our Shipping PolicyDelivery dates for items that are out of stock may be extended

    • Replacement Controller Ballast for the USWF 4CR1 ultraviolet water treatment system

    • Provides both audible and visual lamp change reminders

    • Inculdes attached power cord and UV lamp connector

    • Three-year, no-hassle warranty

    Features & Specs
    Package Qty: 1
    Manufacturer: USWF
    Manufacturer's Id: USWF-RCB4.01
    Actual Size (in): 6.8 inch (Length) x 3.6 inch (Width) x 4 inch (depth)
    Warranty Guarantee: Three (3) year Limited Warranty
    Brand: USWF Water Treatment
    Warranty Info
    Warranty Guarantee: Three (3) year Limited Warranty

    The USWF-RCB4.01 is a replacement controller for the USWF-4CR1. USWF replacement controllers feature a splash proof case, a fully potted ballast to protect from possible water damage and to improve heat dissipation, and are backed by a three-year, no-hassle warranty. The controller has an LED display with a 4-digit lamp change reminder, along with an audible lamp out indicator. Failure to replace the UV lamp on schedule will put additional stress on the controller ballast, always change your lamp after the reminder alert for optimal system performance.



    Proudly made in America

    Ultraviolet (UV) water treatment systems use specialized lamps that emit UV light at a wavelength designed to disrupt the cellular function of microorganisms. This light damages the DNA of bacteria, viruses, and other pathogens, preventing them from reproducing or causing infection. Because UV treatment neutralizes these organisms without chemicals, it offers a clean, safe, and low-maintenance solution for water disinfection. Once installed, the UV lamp operates continuously, disinfecting water around the clock with only minimal annual maintenance required.

    Since UV light travels in a straight line and doesn't penetrate solids or shadows, prefiltration is essential. Removing sediment, silt, and other particles ensures the UV light can effectively reach and treat any microorganisms present. Additionally, minerals found in hard water can accumulate on the quartz sleeve that protects the UV lamp, potentially reducing its effectiveness. In areas with hard water, a water softener is recommended as part of the pretreatment process.

    For water drawn from natural sources, professional testing and proper treatment are strongly recommended before it's used for drinking, cooking, bathing, or recreational purposes. UV disinfection provides a dependable, chemical-free, and environmentally responsible method for treating water and protecting against microbiological contaminants.

    USWF-RCB4.01   fits the following model number(s)

    • USWF-4CR1
    • 4CR1
    • LB4-Z1
    • LB4-Z2
    • LB4-Z12
    • LB5-Z1
    • LB5-Z5
    • LB5-Z12
     

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