HALF OFF PONDS and Water Gardens Shock Wave 9-Watt in-Line Clarifier for Ponds and Water Features
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
11 left in stock
Arrives
Monday, Jun 2
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Size: 9-Watt
Color: Injection Molded ABS
Features
- The 9-Watt light system, in conjunction with your mechanical and biological filters, is ideal for clearing ponds up to 900 gallons with an optimal flow rate of 300 - 500 GPH.
- The light system includes: 2.5" diameter outer housing, quartz sleeve (glass tube), 9-watt bulb, 120-volt transformer with 22-foot total length electrical cord, graduated insert barb fittings from .75"-1.5".
- The outer housing provides durability and years of excellent operation. Reduce the amount of maintenance and cleaning for your water feature. The light bulb provides 9,000 hours of filtration before needing to be replaced. Glowing light indicator provides the homeowner with a way to monitor the light bulb. The lights are easy to install in-line.
- Backed by a 2-year manufacturer's warranty.
- Maintenance videos can be found online.
Product Dimensions: 18 x 14 x 8 inches
Item Weight: 3.96 pounds
Manufacturer: Half Off Ponds
Country of Origin: China
Item model number: HOP-SW-09
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 36-Watt
Color: Injection Molded ABS
My koi pond water was not getting any clearer after I replaced the bulbs on the existing 9V and 18V UV clarifier(both tetra and both were over 10 or 12 years old). I could no longer find replacement tetra 18v bulbs from Amazon. I had to buy it from another site and the two old UV clarifier seemed not effective anymore. I saw the bad ratings on the 36v Tetra UV clarifier and hesitated to buy that. I saw good reviews on this brand and really hesitated to buy this also as I had not heard of the brand. The reviews seemed genuinely good so I ended up giving this a shot. Some reviewers complained about difficulties with the O ring and/or hose connections. I personally simply replaced the old 18v and reconnected same hoses into this new 36v. It worked so well. After 3 days the water became much better. After 7 days, the pond water is completely crystal clear like it used to be. I’m happy and highly recommended this.
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Reviewed in the United States on September 30, 2024 by AmznFan
Size: 9-Watt
Color: Injection Molded ABS
Initial product did not work (no UV light) but great support from the seller. Replacement works beyond expectations. I have a 300 gallon pond with a bog filter but still had unclear green water. Literally within 2 days after installation the pond is absolutely clear and I can see the fish and even the bottom.
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Reviewed in the United States on June 22, 2023 by 338 Mag
Size: 75-Watt
Color: Stainless Steel
Ordered the Shockwave 75 watt uvc clarifier and shipping was very fast. Sadly, it failed in less than 30 hours. My return was immediately approved and a replacement shipped. It seemed the replacement arrived more quickly than the original purchase with no additional charge to my credit card and a generous 30 days to return the defective original. The replacement is working perfectly and the algae in my pond is quickly disappearing. It’s possible for any mass produced product to turn out the occasional defective unit. The company that promptly and fairly addresses the issue is the one to do business with. I had to take away one star for having to redo all the plumbing.
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Reviewed in the United States on June 10, 2024 by James Musgrave
Size: 55-Watt
Color: Injection Molded ABS
I have fought for years to keep my water clear because my pond gets a lot of sunlight finally bought this and wow it worked great my pond was already green with algae and within a few days of hooking it up my water was clean and clear my fish thrived as well as the plants I would highly recommend this if you are having a hard time keeping your pond clean
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Reviewed in the United States on March 2, 2025 by More monkeys
Size: 75-Watt
Color: Stainless Steel
Didn’t even last a year. Bad investment and would not recommend for the price.
Reviewed in the United States on January 6, 2025 by Lovely
Size: 18-Watt
Color: Injection Molded ABS
Had Easypro 11w in filter, submerged UV filter. Power cord kept being compromised. Couldn’t find reasonably priced repair for this unit so researched alternatives. Found this one 18w in line (not submerged) for a better price than replacing my Easypro filter (which filters excellent even without UV). Easy installation and withIn two days can see the bottom already. Early review, let’s see how long the bulb lasts. To be continued
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Reviewed in the United States on June 6, 2024 by Dave Smith
Size: 9-Watt
Color: Injection Molded ABS
i have a 125 gallon insert pond for the last 12 years, i have tried several types of uv lights and no luck. Im always worry about the harm this uv lights can cause to my fish, i had tried plants, algicides, natural remedies and so forth. nothing has help, last year my pond was green soup all year around, i knew my fish were alive because they came to surface to eat. i got this light this spring and has worked better then good, i was able to see my fish all summer, this fall cleaning to get ready for winter was so much easier. i recommend this light. my pond is smaller then what this light calls for, but it work great
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Reviewed in the United States on October 31, 2024 by chispy046 chispy046
Size: 55-Watt
Color: Injection Molded ABS
The old Uv must have went out becuase the water in 1500 gal pond started to turn green from algae.. ordered a new one and withing 3 days the water was much clearer withing a week water was crystal clear again... Fish are much happier now and so are we...
Reviewed in the United States on December 1, 2024 by Bmac