Submersible UV-C Sterilizer – Aquarium, Pond & Reservoir

Submersible 254nm UV-C Water Sterilizer for Aquarium Sumps, Ponds, Hydroponics & Humidifier Reservoirs

Waterproof UV-C Light That Kills Algae, Green Water, Bacteria & Mold

💨 Always Free Shipping on All Products — No Hidden Costs!

This waterproof 254nm UV-C sterilizer drops into almost any water reservoir — aquarium sumps, ponds and fountains, hydroponic tanks, and DIY humidifier or mist-maker reservoirs — and kills the algae, green water, bacteria, and mold that cloud your water and force constant cleaning. Setup couldn't be simpler: drop it in and plug it in.

⚠ Available ONLY for 120V outlets (North America). We do NOT ship glass UV lights outside North America — sorry for the inconvenience.

✅ Why Choose This UV-C Sterilizer?

• 254nm Germicidal Wavelength – The most powerful range for killing algae, bacteria & mold

• Clears Green Water & Cuts Cleaning – Extends the interval between reservoir and sump scrub-downs

• Waterproof, Drop-In Design – Fully submersible; sits right in the water, no plumbing required

• On/Off Switch & 2 Suction Feet – Easy to position and secure

• Low Power – Just a 9W bulb; run it a few hours a day, not 24/7

📍 Where to Use Your UV-C Sterilizer

Because it sterilizes the water itself, this fully submersible 254nm UV-C light works in almost any water reservoir or sump:

• Aquarium sumps & fish-tank filtration – place it in the sump (the separate filter chamber), never in the display tank where your fish live, to help clear green water, algae, and bacteria from large-tank water

• Ponds, fountains & water features – keeps recirculating water clearer and cuts green-water haze

• DIY humidifier & mist maker reservoirs – its original job; far fewer reservoir scrub-downs

• Hydroponic & fogponic reservoirs – kills algae and biofilm between water changes

⚠ Never look directly at the UV light while it's on – UV-C can damage your eyes. Switch it off and unplug before opening any reservoir or sump.

📦 What's Included

• 1x UV-C Reservoir & Sump Sterilizer (9W, 254nm, with on/off switch)

• 2x Suction Feet

• Free U.S. Shipping on all orders

📊 Product Specifications

• Wavelength: 254nm (germicidal UV-C)

• Bulb: 9W · Voltage: 110V (North America only)

• Dimensions: 10.24" x 0.79"

• Cable: 7.75" with inline on/off switch

💡 How to Use

• Drop it into your reservoir or sump and plug it in — that's it.

• No need to run it 24/7 — use a timer for about 3 hours per day.

• If you don't get the result you want, increase run time until your water stays consistently clean.

⚠ Safety: NEVER look into a UV light — it can damage your eyes. Always unplug the light before opening your reservoir lid or sump.

🔗 Pairs With

• Any House of Hydro Mist Maker Kit – keeps the reservoir cleaner on any fogger

• Auto Fill Mini Float Valve – fresh water in, cleaner water maintained

• DIY Humidifier Build Guide – build a low-maintenance system

⚠ Shipping Notes:

• ✅ Free Shipping within the USA.

• 🚫 This glass UV light ships to North America (120V) only and cannot be shipped internationally.