Waterfed window cleaning has officially taken a stronghold on the industry, becoming the go-to method for both newcomers and seasoned pros. New cleaners entering the filed quickly realize how a well-designed waterfed setup can help them scale their business faster while still delivering spotless, streak-free results. Whether they’re learning on the simplicity of a DI-only system or investing in the thorough performance of an RODI setup, more and more contractors are discovering which method best supports their workflow and their customers’ needs.
This year’s top three winners highlight each category-showcasing the tools that rose above the rest in performance, value, and overall impact on the industry. Let’s meet this year’s winners.
#1: Unger HydroPower Ultra Replacement Resin takes the top spot among 2025’s best-selling waterfed tools; Unger’s HydroPower Ultra Replacement Resin proves just how dominant the HydroPower Ultra DI-only systems have become in the field. Contractors across the industry who fall within the recommended guidelines for low TDS areas and infrequent use continue to trust these units for their reliability, simplicity, durability, and consistent production of spot-free water-and the resin bags are the heart of that performance.
Unger’s Ultra resin isn’t just a refill; it’s a major upgrade. Engineered as a premium, ultra-efficient DI media, each bag delivers up to 30% more pure water output compared to the original HydroPower replacement bags. That means fewer changeouts, longer runtimes, and more jobs completed with confidence.
The fact that these resin packs claim the #1 spot is a direct testament to how well the HydroPower Ultra systems perform day after day. When the pros and DIY’s need dependable purity and maximum efficiency, they reach for Unger-and 2025’s numbers make that clearer than ever.
#2: Gardiner’s SLX All-Carbon Fiber Waterpoles proudly claim the #2 spot for top-selling waterfed tools of 2025-and for good reason. The SLX is a fully telescoping pole constructed from 100% carbon fiber, delivering an unmatched balance of strength, rigidity, and feather-light handling. Outfitted with Gardiner’s patented Smart Clamps, each section locks securely into place without spinning, while still offering the smooth, user-friendly operation professionals love.
For added safety, the SLX includes an insulated outer handle section rated to resist up to 5,000 volts. From coast to coast, window cleaners continue to choose Gardiner as the industry benchmark for premium waterpoles. Their SLX line stands out as the lightest, most rigid, and most trusted choice-cementing its place as a preferred tool for serious professionals in 2025.
#3: The HydroSphere EcoCart 3-Stage RODI System has officially secured 3rd place in our Top-Selling Waterfed Tools-and for good reason. Window cleaning pros continue to trust the EcoCart for its consistent water flow, easy transportability, fast setup, and overall affordability. Built on a sturdy cart with rugged –no flat wheels and long-lasting metal fittings, the EcoCart delivers dependable performance job after job. It’s a system designed to work as hard as the professionals who use it, making its spot in this year’s top rankings well-earned.
As we wrap up our 2025 Top-Selling Waterfed Tools, one thing remains constant: Detroit Sponge’s commitment to serving the professional window cleaning community.
For more than eight decades, we’ve taken pride in offering the right tools, the best guidance, and the fastest shipping in the industry. Our friendly, knowledgeable team is here to support you with true professionalism-whether you need product advice, troubleshooting, or help choosing the perfect setup for your next job.
If you ever need us, we’re just a call or click away.
Phone: 1-800-535-6394
Email: customerservice@detroitsponge.com
From all of us at Detroit Sponge-thank you for trusting us to keep your business moving.