--- product_id: 8039803 title: "Tetra Pond GreenFree 9W UV Clarifier" brand: "tetra" price: "฿1446" currency: THB in_stock: false reviews_count: 9 url: https://www.desertcart.co.th/products/8039803-tetra-pond-greenfree-9w-uv-clarifier store_origin: TH region: Thailand --- # Quick algae kill in 5 days Clears ponds up to 1800 gallons 9W powerful UV-C lamp Tetra Pond GreenFree 9W UV Clarifier **Brand:** tetra **Price:** ฿1446 **Availability:** ❌ Out of Stock ## Summary > 🌟 Transform your pond into a crystal-clear oasis — algae doesn’t stand a chance! ## Quick Answers - **What is this?** Tetra Pond GreenFree 9W UV Clarifier by tetra - **How much does it cost?** ฿1446 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/8039803-tetra-pond-greenfree-9w-uv-clarifier) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Optimized for Large Ponds:** Effectively treats ponds up to 1800 gallons, perfect for serious pond enthusiasts and garden sanctuaries. - • **Crystal Clear Waters, Fast:** Eradicates heavy algae blooms within just 5 days, restoring pond clarity and vibrancy. - • **Powerful 9W UV-C Technology:** Utilizes advanced ultraviolet light to disrupt algae reproduction at the cellular level for long-term pond health. - • **Durable & UL-Certified Reliability:** Built to last with UL safety certification, ensuring peace of mind and consistent performance season after season. - • **Effortless Installation & Discreet Design:** Sets up in minutes and blends seamlessly into your pond environment without disrupting aesthetics. ## Overview The Tetra Pond GreenFree 9W UV Clarifier is a robust ultraviolet clarifier designed to keep ponds up to 1800 gallons free from green algae. By exposing suspended algae to powerful 9-watt UV-C light, it disrupts their reproductive cycle, eliminating algae blooms typically within five days. Easy to install and UL-certified for safety, this durable clarifier integrates discreetly into your pond setup, ensuring long-lasting clarity and healthier aquatic life. ## Description Seit 50 Jahren haben Fischzucht Enthusiasten den Namen Tetra für Produkte und Lösungen, die ihrem Zuhause Leichtigkeit und Schönheit verleihen. Egal, ob Sie ein erfahrener Bastler sind oder gerade erst anfangen, Tetra hat alles, was Sie brauchen – von einer großen Auswahl an hochwertigem Fischfutter über innovative Ausrüstung bis hin zu Test-Sets und Dekorationen. GreenFree UV-Klärer halten Ihren Teich sauber, klar und frei von Grünalgen. Diese zuverlässigen Klärer verwenden UV-Licht, um Schwebenalgen zu zerstören. Da Algen in den Klärer gepumpt werden, sind sie UV-Licht ausgesetzt, das die Fortpflanzungsfähigkeit von einzelligen Algen zerstört. Die toten Algen werden dann aus dem Klärer gepumpt, wo sie klumpt und durch das Filtersystem Ihres Aquariums entfernt wird. Tetra UV-Klärer können in der Regel schwere Algenblüten innerhalb von fünf Tagen entfernen und Ihren Teichalgenfrei langfristig halten. GreenFree UV-Klärer sind leicht zu verbergen, langlebig, in wenigen Minuten installiert. UL-gelistet. 4,5 m Netzkabel.במשך 50 שנה, חובבי דיג חיפשו את שם Tetra למוצרים ופתרונות שמוסיפים קלילות ויופי לביתם. בין אם אתם חובבים מנוסים או רק מתחילים, ל-Tetra יש את כל מה שאתם צריכים – ממגוון גדול של מזון דגים איכותי וציוד חדשני ועד לערכות ובדיקת עיצוב. מטהרי UV של GreenFree עובדים כדי לשמור על הבריכה שלכם נקייה, צלולה וללא אצות ירוקות. מטהרים האמינים האלה משתמשים באור אולטרה סגול כדי להרוס אצות ירוקות תלויות. כאשר אצות נשאבות לתוך המטהר הן נחשפות לאור אולטרה סגול שהורס את יכולת הרבייה של אצות תאים בודדות. האצות המתות נשאבות החוצה מהמנקה שם הן גושים ומוסרות על ידי מערכת הסינון של הטנק שלכם. מטהרי UV של Tetra יכולים בדרך כלל להסיר פריחת אצות כבדה תוך חמישה ימים ולשמור על האצות שלכם לטווח ארוך. מטהרי UV של GreenFree קלים להסתרה, עמידים, להתקנה תוך דקות. רשום UL. כבל חשמל 4.6 מטר.منذ 50 عامًا، يبحث عشاق صيد الأسماك عن اسم تيترا للحصول على منتجات وحلول تضيف الراحة والجمال إلى منازلهم. سواء كنت هاويًا ذو خبرة أو مبتدئًا، فإن تيترا لديها كل ما تحتاجه - من مجموعة كبيرة ومتنوعة من أطعمة الأسماك عالية الجودة والمعدات المبتكرة إلى مجموعات الاختبار والديكور. تعمل منظفات الأشعة فوق البنفسجية من جرين فري على الحفاظ على نظافة البركة ونقية وخالية من الطحالب الخضراء. تستخدم هذه المنقيات الموثوق بها الأشعة فوق البنفسجية لتدمير الطحالب الخضراء المعلقة. عندما يتم ضخ الطحالب في جهاز التنقية فإنها تتعرض للأشعة فوق البنفسجية التي تدمر القدرة التناسلية للطحالب ذات السيليون. ثم يتم ضخ الطحالب الميتة من المنظف حيث تتكتل ويتم إزالتها بواسطة نظام الترشيح الخاص بك. يمكن لمنقي تيترا للأشعة فوق البنفسجية إزالة مزهر الطحالب الثقيلة في غضون خمسة أيام والحفاظ على خلوها من الطحالب البركة لفترة طويلة. تتميز أجهزة تنقية الأشعة فوق البنفسجية من جرين فري بأنها سهلة الإخفاء ومتينة ويمكن تركيبها في دقائق. مدرج في قائمة UL. سلك طاقة بطول 15 قدم.Há 50 anos, os entusiastas da pesca procuraram o nome Tetra para produtos e soluções que adicionam facilidade e beleza à sua casa. Seja você um amador experiente ou apenas começando, a Tetra tem tudo o que você precisa – desde uma grande variedade de alimentos para peixe de qualidade e equipamentos inovadores até kits de teste e decoração. Os clareadores UV GreenFree trabalham para manter sua lagoa limpa, clara e livre de algas verdes. Estes clarificadores confiáveis usam luz ultravioleta para destruir algas verdes suspensas. Como algas são bombeadas no clareador, elas são expostas à luz ultravioleta que destrói a capacidade reprodutiva de algas celulares únicas. As algas mortas são então bombeadas para fora do Clarificador onde se aglomeram e são removidas pelo sistema de filtragem do seu tanque. Os clarificadores UV Tetra podem remover flores pesadas de algas dentro de cinco dias e manter suas algas de lago livres por longo prazo. Os clareadores UV GreenFree são fáceis de ocultar, duráveis e instalados em minutos. Certificação UL. Cabo de alimentação de 4,5 m.50 年來,釣魚愛好者一直在尋找 Tetra 品牌的產品與解決方案,為他們家增添輕鬆感和美感。 無論您是經驗豐富的業餘愛好者,還是剛開始使用,Tetra 都能為您提供所需的一切 - 從各種優質魚類食品和創新設備到測試套件和裝飾。 GreenFree UV 澄清劑可以讓您的池塘保持乾淨、乾淨,不含綠藻。 這些可靠的澄清劑使用紫外線摧毀懸浮的綠藻。 當藻類被吸入澄清器時,它們暴露在紫外光下,破壞了單粒藻類的再生能力。 死藻然後從澄清器中抽出,然後由罐子的過濾系統移除。 Tetra UV 澄清劑通常可以在五天內去除沉重的藻類,並長時間保持池塘無藻類。 GreenFree UV 澄清劑易於隱藏,耐用,幾分鐘內即可安裝。 UL 認證。 15 英尺電源線。50 年来,渔业爱好者一直在 Tetra 的名字寻找能够为他们家增添轻松和美感的产品和解决方案。 无论您是一个经验丰富的业余爱好者还是刚刚刚开始,Tetra 都能满足您的所有需求 - 从各种优质鱼类食品和创新设备到测试套件和装饰。 GreenFree 紫外线净化器可以让您的池塘保持干净、透明且无绿藻。 这些可靠的净化器使用紫外线来破坏悬浮绿藻。 当藻类被抽入到净化器中,它们暴露在紫外线下,破坏单细胞藻类的生殖能力。 然后将死藻从过滤器中抽出结块,并被水箱的过滤系统去除。 Tetra 紫外线净化器通常可以在五天内去除繁重的藻类,让您的池塘长期无藻。 GreenFree 紫外线净化器易于遮瑕,经久耐用,只需几分钟即可安装。 UL 认证。 15 英尺(约 4.6 米)电源线。50년 동안 낚시 애호가들은 집에 편리함과 아름다움을 더하는 제품과 솔루션을 Tetra에서 찾아왔습니다. Tetra는 다양한 품질의 물고기 사료와 혁신적인 장비부터 테스트 키트 및 장식에 이르기까지 경험이 풍부한 취미로 시작하든 상관없이 필요한 모든 것을 갖추고 있습니다. GreenFree UV 정화기는 연못을 깨끗하고 깨끗하게 유지하고 녹색 조류가 없습니다. 이 신뢰할 수 있는 정화기는 자외선을 사용하여 떠있는 녹색 조류를 파괴합니다. 조류가 정화제로 펌핑되면 단일 세포 조류의 생식 능력을 파괴하는 자외선에 노출됩니다. 그런 다음 죽은 조류가 정화기에서 펌핑되어 탱크의 여과 시스템에 의해 제거됩니다. Tetra UV 정화제는 일반적으로 5일 이내에 무거운 조류를 제거하고 연못 조류를 사용하지 않도록 장기간 사용할 수 있습니다. GreenFree UV 정화기는 숨기기 쉽고 내구성이 뛰어나며 몇 분 안에 설치할 수 있습니다. UL 등록. 4.6m(15피트) 전원 코드 Review: Kills the algae and clears the pond water! - I built a koy pond in my garden 3 years ago. 4 cubic meters or so. I've had all the normal issues about a pond, mainly the massive growing of microscopic algae that turns the water opaque green. This always dissapointed me because it was not possible to see the fish. After two weeks from a deep cleaning I couldn't even know if they were alive. After doing some research in the internet I took ideas from different designs and decided to built my own filter. It's an external tank-type filter. The water is pumped from the pond, goes through the TetraPond UVC-9 lamp, then goes to the bottom of the tank (there is a circular flow which produces a cyclonic effect on the solid debries). Some bio-balls help with the first biologic processing of the organic solids. Then the water passes upwards thru four layers of Matala Mats (black, green, blue and gray), combined with a last group of bio-balls at the top of the tank. At the top of the tank the water falls thru a side sink directly to the pond. It's a very simple design, and I am happy to say that IT REALLY WORKS!!!! This system kills the microscopic algae, filters almost all the solid debries, treats biologically and chemically the water and makes a very efficient processing of the solids. I started the field test with the pond totally opaque green, since I needed to prove the efficiency of the system. The combination of these different elements was able to totally clear the water in only 9 days!! By now it's been more than 3 months since the last time the microscopic algae showed in my pond. My fish are healthy and are growing noticeablely, I am sure they never lived in a better quality water. The maintenance couln't be easier: I just have to turn the pump off, dismount the Matala layers and rinse everything with a regular hose. The tank also is rinsed and the waste water is disposed of thru a control valve mounted at the bottom of the tank. Finally I reassemble the parts and the system is ready to work again. The Matala mats came in 39"x24" sheets, so I still have spare material for two more filters, If I decided to build more ponds for my friends. I strongly recommend Matala Mats, TetraPond UVC-9 UV lamps and the bio balls to any pond enthusiast. Review: Excellent - Works well! Seems a little pricey, but does a fantastic job keeping our pond clear and clean . It was easy to install. ## Features - 9watt Greenfree Uvc - 9 Clarifier (ponds To 1800gal) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00474FI48 | | ASIN | B00474FI48 | | Best Sellers Rank | #593,731 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #906 in Water Garden & Pond Treatment | | Brand Name | Tetra | | Customer Reviews | 4.5 4.5 out of 5 stars (600) | | Date First Available | November 26, 2010 | | Global Trade Identification Number | 00046798195207, 10046798195204 | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Weight | 3.8 Pounds | | Item model number | 19520 | | Liquid Volume | 1800 Gallons | | Manufacturer | Tetra Pond | | Manufacturer | Tetra Pond | | Manufacturer Part Number | 956619 | | Model Number | 19520 | | Pet Type | Fish | | Product Dimensions | 4.13 x 12 x 8.75 inches; 3.8 Pounds | | Target Species | Fish | | UPC | 046798195207 | | Unit Count | 1 Count | ## Product Details - **Brand:** Tetra - **Item Form:** Liquid - **Item Weight:** 3.8 Pounds - **Liquid Volume:** 1800 Gallons - **Manufacturer:** Tetra Pond ## Images ![Tetra Pond GreenFree 9W UV Clarifier - Image 1](https://m.media-amazon.com/images/I/71jCNu5ItxL.jpg) ![Tetra Pond GreenFree 9W UV Clarifier - Image 2](https://m.media-amazon.com/images/I/716nOD+1QAL.jpg) ![Tetra Pond GreenFree 9W UV Clarifier - Image 3](https://m.media-amazon.com/images/I/81fRn6tKSiL.jpg) ![Tetra Pond GreenFree 9W UV Clarifier - Image 4](https://m.media-amazon.com/images/I/71kmvcCXFyL.jpg) ![Tetra Pond GreenFree 9W UV Clarifier - Image 5](https://m.media-amazon.com/images/I/81ihBhp3smS.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Kills the algae and clears the pond water! *by R***A on August 22, 2013* I built a koy pond in my garden 3 years ago. 4 cubic meters or so. I've had all the normal issues about a pond, mainly the massive growing of microscopic algae that turns the water opaque green. This always dissapointed me because it was not possible to see the fish. After two weeks from a deep cleaning I couldn't even know if they were alive. After doing some research in the internet I took ideas from different designs and decided to built my own filter. It's an external tank-type filter. The water is pumped from the pond, goes through the TetraPond UVC-9 lamp, then goes to the bottom of the tank (there is a circular flow which produces a cyclonic effect on the solid debries). Some bio-balls help with the first biologic processing of the organic solids. Then the water passes upwards thru four layers of Matala Mats (black, green, blue and gray), combined with a last group of bio-balls at the top of the tank. At the top of the tank the water falls thru a side sink directly to the pond. It's a very simple design, and I am happy to say that IT REALLY WORKS!!!! This system kills the microscopic algae, filters almost all the solid debries, treats biologically and chemically the water and makes a very efficient processing of the solids. I started the field test with the pond totally opaque green, since I needed to prove the efficiency of the system. The combination of these different elements was able to totally clear the water in only 9 days!! By now it's been more than 3 months since the last time the microscopic algae showed in my pond. My fish are healthy and are growing noticeablely, I am sure they never lived in a better quality water. The maintenance couln't be easier: I just have to turn the pump off, dismount the Matala layers and rinse everything with a regular hose. The tank also is rinsed and the waste water is disposed of thru a control valve mounted at the bottom of the tank. Finally I reassemble the parts and the system is ready to work again. The Matala mats came in 39"x24" sheets, so I still have spare material for two more filters, If I decided to build more ponds for my friends. I strongly recommend Matala Mats, TetraPond UVC-9 UV lamps and the bio balls to any pond enthusiast. ### ⭐⭐⭐⭐⭐ Excellent *by E***E on July 3, 2025* Works well! Seems a little pricey, but does a fantastic job keeping our pond clear and clean . It was easy to install. ### ⭐⭐⭐⭐⭐ Green water? Here is your cure *by M***A on October 19, 2020* Thanks to 2020 being so, well 2020, we had a lot of lock-down time on our hands. We got a ton of projects around the house done, including building a couple of ponds with a little mini-stream connecting them. We live in Miami, so naturally everything was happy for the first 6 or so weeks, then came the Algae explosion. We could no longer even see our wonderful koi, comets and African Ciclids. Only the guppies and mollies hanging out at the surface were evident. We added the 1800 gallon model for our 800 gallon pond setup and within three days we were able to see all our fish again and within a week the water was as clear as the day we filled the pond. It just works and was easy for me to install - I just cut off the smaller hose diameter "step downs" on the intake and outlet nipples since we're using 1.25" tubing. Don't touch the bulb with your oily hands when you set it up and you should be able to avoid the symptom other reviewers have posted around very short bulb life. We've only had the UV light in for 6 weeks, so I can't speak to long term UV bulb life, but it's definitely doing it's job and I'll be happy even if I have to replace the bulb 2 or even 4 times per year. The power consumption is minimal, but I'm considering the pros/cons of putting the light on a timer and running it 8-12 hours/day vs. 24/7, I just haven't gotten around to it. Hope this review helps anyone staring at pea soup instead of their fish! ## Frequently Bought Together - Tetra Pond GreenFree 9W UV Clarifier - TetraPond Replacement Bulb For GreenFree UV Clarifier, For Clean And Clear Ponds, 9-Watt, 1 Count (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/8039803-tetra-pond-greenfree-9w-uv-clarifier](https://www.desertcart.co.th/products/8039803-tetra-pond-greenfree-9w-uv-clarifier) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*