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2 Pack 36 Watts UV Bulb 16.5 Inch Germicidal 2G111 Base UVC Replacement Light Bulb for HVAC Duct Air Purifier & Pond Clarifier

Free shipping on orders over $29.99

$23.99

$ 11 .99 $11.99

In Stock

1.Size:18w (8.81 Inch) 2 Pack


About this item

  • 【Features】Wattage: 36W; Length: 16.5"; Base: 2G11; EPA Est. No. 96998-CHN-1
  • 【Enhanced Efficiency】With a UV peak of 253.7nm and high transmissions quartz tube, this 36-watt UV light bulb replacement ensures maximum performance, effectively controlling heavy algae blooms in ponds and water gardens, keeping water clean and green-free, providing a healthier and cleaner water environment.
  • 【Long-Lasting and Reliable】This UVC bulb has a lifespan of more than 8000 hours, providing long-term and effective use. It is recommended to replace the bulb every 8 to 10 months, depending on usage and environmental factors.
  • 【Wide Compatibility】Designed as a universal replacement, this UV bulb is compatible with various pond clarifier brands, AQUATOP, Jebo, Jebao, Tetra, SUNSUN, ViaAqua, Grech, etc.
  • 【Important Safety Note】This bulb emits short-wave UV radiation with a peak at 253.7 nm, which is ozone-free. Please avoid direct eye contact with the light when it is in use as it can be harmful.
  • 【180-Day Warranty】We stand behind the quality of our product and offer a 180-day warranty. If you encounter any issues during the warranty period, please don't hesitate to reach out to us. We aim to provide excellent customer service within 24 hours.



Product Description

quartz tube

High Transmission Quartz Tube

Firstly, quartz glass is a special type of glass material that has excellent transparency and high-temperature resistance. This allows it to effectively transmit ultraviolet (UV) light, so using quartz glass ensures that the UV light can fully take effect.

Secondly, quartz glass has a low absorption rate and radiation ability, meaning it can maximize the range that UV radiation can reach.

Additionally, quartz glass also has high corrosion resistance and can withstand the attack of most chemicals and solvents. This is important for the long-term use of sterilization lamps.

non chemical

Chemical-Free

Chemical-free: UV filters can kill bacteria, viruses, and other harmful microorganisms through physical means without the use of chemicals.

Efficient sterilization: UV filters can efficiently eliminate bacteria and viruses, even tackling microorganisms that may be difficult for chemical filters to address. This ensures clean and hygienic pond water.

No secondary pollution: Chemicals can sometimes produce by-products or secondary pollutants that may have negative effects on health and the environment. UV filters, on the other hand, do not require the addition of any chemicals, thus avoiding these issues.

8000 hour sevice time

8000 Hours Service Life

First, quartz glass has a high melting point, which allows it to withstand the intense heat generated by the UV lamp without deforming or melting.

Second, quartz glass is highly resistant to chemical corrosion and degradation, and this helps maintain the integrity of the lamp over time.

Additionally, quartz glass has low thermal expansion and excellent thermal shock resistance, which means it can handle rapid temperature changes without cracking or breaking. This property contributes to the durability and longevity of UV lamps made with quartz glass.

180-Day

High Intensity UV

UV light has strong germicidal properties and can effectively eliminate bacteria, viruses, and other microorganisms in the water. This helps improve water quality and reduces the risk of diseases in fish and aquatic animals.

High-intensity UV light can break down and oxidize organic substances, ammonia nitrogen, and other pollutants in the water, effectively improving water quality and transparency. This creates a clear and healthy water environment, promoting better growth for fish and aquatic plants.

Algae prevention: UV light can disrupt the growth and reproduction of algae cells, reducing the overall algae population in the water.

suitable for various environments
Before After

Customer
Reviewed in the United States on May 3, 2025
Fast and accurate, great product . I would tell the delivery service to handle glass and plastics a little bit less rough.
OTazMan
Reviewed in the United States on May 24, 2025
Garbage replacement bulbs. Put a new one in and within a week algae bloom exploded. Have had pond for 5 years and these bulbs do not work.
Luxor Fish
Reviewed in the United States on March 15, 2025
Current UV tube still working and pond is clear after year. Hope these work as well and as long.
Rockin Roy
Reviewed in the United States on July 9, 2024
The sight glass on my UV lamp greened over. so I bought these.The final diagnosis (maybe), the water flow was to fast.I changed to a partial flow system and it's improving. Plus, I have a spare bulb for next year.
tomm
Reviewed in the United States on June 19, 2024
Bought the two pack thinking I would save money by having one on hand for next season. Turns out I needed the second one immediately. They are individually packaged in corrugated paperboard, but are so tightly glued that I cracked the glass bulb trying to remove the first one, rendering it "blown". I was extremely careful on the second one and have a functional UV unit again.
Yin - Fire
Reviewed in the United States on December 18, 2024
The quartz glass is a bit janky on the tip, bit the filaments seem secure. I just received them so I haven't had much time with them, but they look fine. I'll update in a couple of months if something changes.
l frazier
Reviewed in the United States on November 6, 2024
This bulb for perfectly and is working just as expected. It's so much less expensive than the name brand one that didn't last 2 weeks.
Colo Happy Feet
Reviewed in the United States on October 24, 2024
They seem to work OK for a while, but they only last about half as long as the original bulbs.