Expert consulted: 
If you’ve been dragging around a clunky mop and bucket, consider this your sign to upgrade your cleaning supplies with a steam mop. Steam mops are great at dissolving grime, removing stuck-on deposits and even killing bacteria on bathroom and kitchen floors.
This Amazon Prime Day, you'll see a lot of steam mops on sale, and many of them will do the to job well. But if you want to make sure you're getting the most out of your steam mop, you need the Reliable Steamboy 300CU Steam Floor Mop.
Pros
- Stands up on its own
- Easy to carry and maneuver into corners
- Includes a scrub brush head
Cons
- Some users said the anti-scale cartridge for the water tank is a pain to replace
The Reliable Steamboy 300CU Steam Floor Mop isn’t just an Amazon hidden gem — our Cleaning Lab pros name it the best-performing steam mop. And right now for Prime Day, it's on sale, so you can score it for 20% off.
At first glance, this mop may look pretty basic. It doesn’t have a digital display or adjustable steam settings. But we think it makes up for fancy features with smart design, powerful steam performance and a few thoughtful features that make it feel more premium than its price tag suggests.
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Why it's worth the buy:
The unique shape is ideal for reaching corners
The mop's standout feature is its triangular swivel head, which is helpful for cleaning along baseboards and into corners. Unlike traditional rectangular models that leave dirt behind in tight spots, this one pivots smoothly to hug edges and sneak into awkward angles — like around the toilet or table legs.
It's lightweight and easy to carry
At 5 pounds, it’s light enough to move around your living space and also features a large, comfortable handle for better maneuverability. It stands upright on its own in between uses, too, so you’re not stuck leaning it against the counter or laying it on the floor mid-clean.
The steam mop features built-in versatility
In addition to the scrubber head, the Steamboy comes with a carpet glider that snaps onto the mop for freshening area rugs or low-pile carpeting. You also get four reusable microfiber pads, so you always have a clean one ready to go.
The only real downside? Some users say the anti-scale cartridge inside the water tank is a bit of a pain to replace. But with a 2.5-cup tank and a 21-foot cord, you won't be stopping to refill or replug too often.
If you’re looking for a steam mop that actually makes your life easier (and your floors cleaner), this one’s a sleeper hit. And with 20% off right now, there’s no better time to ditch your old mop and upgrade.
Brigitt is a writer, editor and craft stylist with nearly 15 years of experience. She specializes in lifestyle topics, including home, health, parenting, beauty, style, food, entertaining, travel and weddings. She has written for Glamour, People, Good Housekeeping, Women's Health, Real Simple, Martha Stewart, Apartment Therapy, The Spruce, and more.
Carolyn Forté brings more than 40 years of experience as a consumer products expert to her role as executive director of the Good Housekeeping Institute's Home Care and Cleaning Lab. Using deep analytical testing and writing expertise in appliances, cleaning, textiles and organizational products, she produces cleaning and home care advice for GH, has authored numerous books and bookazines for the brand and partners with the American Cleaning Institute to co-produce the Discover Cleaning Summits. She holds a bachelor's degree in family and consumer sciences from Queens College, City University of New York.
