Tetra Pond Submersible Flat Box Filter
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Keep your pond clean and pristine with the Tetra Pond Submersible Flat Box Filter. This filter works to keep your pond water clean, healthy and clear, filtering ponds and water gardens from 250 to 500 gallons. Because it can be completely submerged underwater, it's ideal for outdoor ponds. Plus, it works to reduce pump and fountain clogging by filtering out dirt and debris. Thanks to its compact flat box design, it fits a variety of pond pumps. And when it’s clean up time, it’s easy to detach to keep it clean as needed. Plus, it’s easy to install in any outdoor pond set up out of the package.
Key Benefits- Keeps outdoor ponds clean by filtering dirt and debris in 250 to 500 gallons.
- Submersible design lets you place it completely underwater so it’s great for ponds.
- Works to constantly reduce pump and fountain clogging to keep your filtering system working smoothly.
- With compact flat box design that means it can fit many different pond pumps.
- Easy to detach to clean easily and effortlessly as often as needed.
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Item Number128104
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Dimensions4.57 x 12.09 x 14.17 inches
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Weight3.3 pounds
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Aquarium TypePond
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Fish TypeKoi & Pond Fish
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MaterialPlastic
Customer Reviews
76% Recommend
76% of reviewersrecommend this product
You've Already Reviewed This Item
17 Reviews
Showing 1-10 of 17 Reviews
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FALSE ADVERTISEMENT
By Leanne on Mar 22, 2021
What you see is not what you get. If you look at the pictures in the ad you will not be sent half of what you think you will be getting.
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Filter box
By Claudia on Feb 23, 2021
The filter is good. Only thing, it must be weighed down or it floats up
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Doesn’t sink
By Betsy on Jul 3, 2020
Though marketed as a submersible filter, it is too buoyant! I woke up this morning to the floating box filter and the pump running dry. Fortunately it did not burn up the pump. Things I’m going to try: a rock or brick like others have suggested (but the sides of my pond slope, and the rock keeps sliding off), replacing plastic filter media with batting-type (definitely absorbs water, thus heavier), or pushing the pump more to the deeper center in the hopes that the short tether to the box filter will keep it pulled below the surface. Hope the filter helps. Only installed it yesterday. Fish don’t seem to mind the algae, but I’d like to see them more!
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filter review
By Dewayne1128 on Jul 10, 2020
This filter works great. I have a 400 gallon 10x13 base pond with two waterfalls and I’ve had no problems with keeping it clear. The only downfall with this filter is I can’t find any replacement filters to go inside the box.
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my 100 gallon aquarium is crystal clear
By Carol2020 on Jun 4, 2020
it is big, but it does such an awesome job filtering my 100 gallon aquarium. Make sure you buy the Tetra pump to go with it, it doesn't come with any pump. I can even take out my other filters because this one did the job. My water is not cloudy anymore it is crystal clear.
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Awesome filter
By Hagriffith on Apr 3, 2020
I got this filter for my small koi pond that I have 2 koi in. It took 24 hours for it to work but it did make the water crystal clear and has been keeping it clear for the past couple of weeks.
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pre-filter
By shep70 on Aug 16, 2019
This was a replacement for a unit I had for years. I use it as a pre pump filter and it does an amazing job. Highly recommend.
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I don’t like this filter it isn’t cleaning my pond
By Aria on Mar 25, 2019
This filter doesn’t really clean anything. My small 350 gallon pond was just severely infested with algae and nothing is getting filtered. I usually scoop through it with a net everyday. Very weak filter
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Almost perfect
By Justme on Jul 15, 2018
The filter is pretty light and so likes to float which tips the pump with the spray head over. I had to put a brick on top to hold it down but the water gets sucked threw the top to be filtered so I did my best. It needs some sort of bracket to hold it down from the sides.
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Great filter
By kittykibble5 on Jun 8, 2018
Thought there was more to this filter before I received it. Had to go out and buying extra tubing and lucky me had a submersible pump laying around that I had already.The directions it came with didn't help me what so ever. Had to look info up ok online. Put some socks I n to the bottom of filter box, to keep it weighed down..Saw this in other reviews filter will float to top if not weighed down Still getting my pond installed so I will have to update my review once it's filled & operating to give full review. Ty
