--- product_id: 415122646 title: "HW-303A Aquarium Canister Filter Sunsun, 1 Piece" brand: "sunsun" price: "VT83234" currency: VUV in_stock: true reviews_count: 5 category: "Sun Sun" url: https://www.desertcart.vu/products/415122646-hw-303a-aquarium-canister-filter-sunsun-1-piece store_origin: VU region: Vanuatu --- # 35W power efficiency 1400 L/h high flow rate 2.0m max head height HW-303A Aquarium Canister Filter Sunsun, 1 Piece **Brand:** sunsun **Price:** VT83234 **Availability:** βœ… In Stock ## Summary > πŸ’§ Elevate your aquarium game with pro-level clarity and effortless filtration! ## Quick Answers - **What is this?** HW-303A Aquarium Canister Filter Sunsun, 1 Piece by sunsun - **How much does it cost?** VT83234 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/415122646-hw-303a-aquarium-canister-filter-sunsun-1-piece) ## Best For - sunsun enthusiasts ## Why This Product - Trusted sunsun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Silent Operation:** Whisper-quiet motor keeps your aquatic environment peaceful - β€’ **Self-Priming Pump:** Hassle-free startupβ€”no manual siphoning needed - β€’ **Powerful 35W Motor:** Energy-efficient yet robust filtration for up to 350L tanks - β€’ **Versatile Media Trays:** Customize filtration with activated carbon, bio-balls & ceramic rings - β€’ **High Flow Rate 1400 L/h:** Ensures crystal-clear water circulation and oxygenation ## Overview The Sunsun HW-303A is a 35W external canister filter designed for aquariums up to 350 liters. Featuring a high flow rate of 1400 L/h and a max head height of 2.0 meters, it offers mechanical, chemical, and biological filtration through customizable media trays. Its self-priming pump eliminates manual siphoning, while the quiet motor ensures minimal noise. Ideal for millennial aquarium enthusiasts seeking reliable, customizable, and efficient water filtration. ## Description SUNSUN HW-303A external canister filter is ideal for tanks up to 350 liter aquarium. The SunSun HW-303A includes filter pads, hoses and all the parts you need to get started. The media trays allow you to add other filtration media such as activated carbons, ceramic rings or bio-balls (additional can be purchase in separate listing) to achieve excellent mechanical, chemical, and biological filtration. The HW-303 canister filter also has a convenient self-priming pump that eliminates the need for manual siphoning. Review: Great customer experience. Review: The first difference between Sunsun 303A and 303B is that 303B has UV light in it. The problem with UV light is it breaks in transit, the bulb gets fused and there is a chance of water leakage inside the UV compartment. So I preferred the 303A. 303A works awesome but you need to apply vaseline to the O ring every time you open the canister to avoid leakage. The Propeller needs to be cleaned as hard water gets deposited on the ceramic shaft and it does not spin after 2-3 months of usage. You can use fine-grit sandpaper used for cleaning car paint and just rub the shaft for a smooth performance. Add ADA Bio Rio in the 2nd and 3rd tray, sponge filters Medium coarse and fine in the bottom tray and it's good to go. You can add Activated carbon used in the Kent water filter to an internal filter and use it along with it. It will do chemical filtration and do the gaseous exchange in the tank. Very silent motor. I am using it continuously without switching it off for 5 months now. Review after a total of 7 months of usage -- I added another prefix filter 603 Sunsun without motor and with filter pads only and just opened that up to clean up the muck and have made the bigger filter a live filter by adding Biohome and ADA filter media. Now it has 2 kilos of bio home and 2 liters of ADA bio Rio and I have not opened it for 2 months and just clean the 603 filter sponge pads. I have not added any sponge pads to the bigger filter learned this from a great guy "The Pond Guru". The water in the tank has done a full cycle. I just change 50% water after 20 days and have two Oscar fish in my tank "Fire" is Copper and "Yellow" is Golden Oscar. This is the first time in 25 years I have seen the "Full cycle of the tank happening" No smell and you can drink the water it's so damn clear. Verdict -- Buy it, it's an awesome filter and is good enough for a 280-liter tank. If your tank is bigger go for the 304 and if smaller u can stick to this. Give me a thumbs up if you find the review helpful. I just need to know how many people could I help with the review. Cheers UPDATE on 29 August 2022 -- The Impeller gets stuck due to minerals in the water. I had to change 3 impellers in less than a year ... O ring was changed once AND NOW IT'S AGAIN LEAKING. I haven't opened it more than 4-5 times each time to change something as I use a different sponge filter and had made this just for ADA bio Rio and Bacteria culture. I would suggest buying better quality. SunSun has launched a Xaoli series and I am trying to find it. Its price on desertcart is 6000/- more than what other sellers are selling it for. Update on 8th October -- Faced a lot of issues due to jammed impellers and continuous leakage I was fed up. I now bought a SunSun XWA(Xaoli series) 1000-3. Xaoli series is a premium quality of sunsun. I did not change anything just filled it up with old media from the 303A and also installed a Fluval Inline UVC, it's just 3 watts and clears Algae amazingly. Now was the time to get an exotic fish ... So found and bought a VIP class 9.9 Kamfa. (9.9 is the breeder and they have business in India also. I hope this will help you decide now or be confused now. XWA 1000-3 has different models you can check it out. It's very sturdy and the design is awesome it's pumping double the water than the HW 303A. ## Features - Power: 35w/output: 1400 L/h - H-max: 2.0m /cable length :1.8m - H-max: 20m /cable length :18m ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06ZZRXN37 | | Allergen Information | Allergen-Free | | Batteries Included | No | | Color | blue | | Customer Reviews | 4.1 4.1 out of 5 stars (100) | | Date First Available | 29 April 2021 | | Item Weight | 450 g | | Item model number | sunsun hw series | | Number of Items | 1 | | Pet Life Stage | all life stages | | Product Dimensions | 40 x 35 x 22 cm; 450 g | | Quantity | 1 | | Size | 1 Count (Pack of 1) | | Specific Uses | aquarium canister filter | | batteries required | No | ## Images ![HW-303A Aquarium Canister Filter Sunsun, 1 Piece - Image 1](https://m.media-amazon.com/images/I/61EqPIB5DqL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***I on 15 August 2024* Great customer experience. ### ⭐⭐⭐⭐⭐ Review *by A***H on 21 December 2021* The first difference between Sunsun 303A and 303B is that 303B has UV light in it. The problem with UV light is it breaks in transit, the bulb gets fused and there is a chance of water leakage inside the UV compartment. So I preferred the 303A. 303A works awesome but you need to apply vaseline to the O ring every time you open the canister to avoid leakage. The Propeller needs to be cleaned as hard water gets deposited on the ceramic shaft and it does not spin after 2-3 months of usage. You can use fine-grit sandpaper used for cleaning car paint and just rub the shaft for a smooth performance. Add ADA Bio Rio in the 2nd and 3rd tray, sponge filters Medium coarse and fine in the bottom tray and it's good to go. You can add Activated carbon used in the Kent water filter to an internal filter and use it along with it. It will do chemical filtration and do the gaseous exchange in the tank. Very silent motor. I am using it continuously without switching it off for 5 months now. Review after a total of 7 months of usage -- I added another prefix filter 603 Sunsun without motor and with filter pads only and just opened that up to clean up the muck and have made the bigger filter a live filter by adding Biohome and ADA filter media. Now it has 2 kilos of bio home and 2 liters of ADA bio Rio and I have not opened it for 2 months and just clean the 603 filter sponge pads. I have not added any sponge pads to the bigger filter learned this from a great guy "The Pond Guru". The water in the tank has done a full cycle. I just change 50% water after 20 days and have two Oscar fish in my tank "Fire" is Copper and "Yellow" is Golden Oscar. This is the first time in 25 years I have seen the "Full cycle of the tank happening" No smell and you can drink the water it's so damn clear. Verdict -- Buy it, it's an awesome filter and is good enough for a 280-liter tank. If your tank is bigger go for the 304 and if smaller u can stick to this. Give me a thumbs up if you find the review helpful. I just need to know how many people could I help with the review. Cheers UPDATE on 29 August 2022 -- The Impeller gets stuck due to minerals in the water. I had to change 3 impellers in less than a year ... O ring was changed once AND NOW IT'S AGAIN LEAKING. I haven't opened it more than 4-5 times each time to change something as I use a different sponge filter and had made this just for ADA bio Rio and Bacteria culture. I would suggest buying better quality. SunSun has launched a Xaoli series and I am trying to find it. Its price on Amazon is 6000/- more than what other sellers are selling it for. Update on 8th October -- Faced a lot of issues due to jammed impellers and continuous leakage I was fed up. I now bought a SunSun XWA(Xaoli series) 1000-3. Xaoli series is a premium quality of sunsun. I did not change anything just filled it up with old media from the 303A and also installed a Fluval Inline UVC, it's just 3 watts and clears Algae amazingly. Now was the time to get an exotic fish ... So found and bought a VIP class 9.9 Kamfa. (9.9 is the breeder and they have business in India also. I hope this will help you decide now or be confused now. XWA 1000-3 has different models you can check it out. It's very sturdy and the design is awesome it's pumping double the water than the HW 303A. ### ⭐⭐⭐⭐⭐ Review *by F***Y on 1 October 2025* Perfect product for my new 5ft aquarium. Working so perfectly without any flaws. No leakage at all. 99% silent and vibration free. It was so easy to install. Overall a great product. In the video water may look brownish it's because there is no light on the tank but the water quality is just crystal clear. I have added filter media of my choice. Let me make you clear that the product doesn't comes with any filter media but SunSun provides three pieces of filter pads for each tray. I suggest fish keepers to go with sunsun HW 303A without UV light, it supports my customised tank which is 60"Γ—18"Γ—20" approximately 350 liters of water volume capacity. ## Frequently Bought Together - Sunsun HW-303A Aquarium Canister Filter Sunsun, 1 Piece - Boltz Freeze Dried Blood Worms Fish Food 25 Grams for Bettas, Tetras, Arowana, Flowerhorn, Oscar fish (25 GM) - BIONIX Freshwater Master Test Kit (200 Test). --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/415122646-hw-303a-aquarium-canister-filter-sunsun-1-piece](https://www.desertcart.vu/products/415122646-hw-303a-aquarium-canister-filter-sunsun-1-piece) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-16*