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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
OASE BioSmart Gravity FiltersThe BioSmart Gravity Filters are a multi stage mechanical and biological filtration system in a compact package, designed for medium ponds or for ponds with moderate biological load (some fish). During biological filtration, the water is channeled through a series of filter foams that create a special environment by allowing the settling of beneficial bacteria. During this stage, harmful ammonia and nitrites are converted to nitrates, which support
The BioSmart Gravity Filters are a multi-stage mechanical and biological filtration system in a compact package, designed for medium ponds or for ponds with moderate biological load (some fish).
During biological filtration, the water is channeled through a series of filter foams that create a special environment by allowing the settling of beneficial bacteria. During this stage, harmful ammonia and nitrites are converted to nitrates, which support plant life in the pond.
Features
- Innovative Flow-Through filter design provides maximum oxygenation
- High-surface area filter foams provide exceptional biological filtration capability
- Distinct filter zones promote the settlement of a variety of beneficial bacterial responsible for different phases of the nitrogen cycle, which increases the conversion of harmful ammonia in your pond
- Advanced features include the built-in cleaning indicator notifies you when the filter needs cleaned and water temperature display tells you the water temperature at all times
- Cleaning handles for convenient maintenance allow for easy cleaning without needing to remove or manually unclog the filter foams
- After clearing the filter foams, the sludge drain can be opened for easy removal of coarse debris from the unit
- For best results and clear water guaranteed, use with an appropriately sized OASE pump and UV clarifier
Product Info
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 2302 reviews
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Product Reviews
★★★★★ 5
Perfect size for small dogs to play solo or gentle tug of war.
Color: Alligator(Green)
I ordered this toy for my dog. She is a 13 pound Shih Tzu mix The toy has nice soft fluffy, short fur and a mix of different textures that I feel when she’s playing with it helps keep her teeth clean.
She loves the squeakers. She loves to squeak squeakers!! The tail is great for playing a gentle game of tug-of-war. I know she enjoys this toy because whenever she wants to play, she’ll bring it over to me and pop it in my lap. If I don’t respond, she’ll start pawing on my leg until I acknowledge her.
Whether I throw it across the room or engaged in some tug-of-war, it keeps her entertained & stimulated. A great boredom buster!
She’s been playing with it now for over a month and so far the squeaker still squeaks, and there are no holes or tears in the toy.
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Reviewed in the United States on March 11, 2026
★★★★★ 1
It didn’t work
Color: Duck(Yellow)
Seeker didn’t work
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Dog didn’t like sound it makes
Color: Duck(Yellow)
I ordered the duck. It’s yellow and a good size for small to medium dogs. It is well made but as the information states this is for gentle chewers.
I have a yorkie poo who thinks he is a big dog and likes toys bigger than himself and this fit the bill until…he heard the sound it makes. He didn’t like it and now refuses to play with it. 🤷🏻♀️ So the 4 stars because he did like it and did play with it. Minus one because of the sound he doesn’t care for. I will need to cut it open if I want him to play with it again. As of right now he doesn’t want to get near it.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Not actually for aggressive chewers
Color: Alligator(Green)
*sigh* Yet ANOTHER toy that's marketed for aggressive chewers that doesn't live up to its claims. My 50-lb goldendoodle put a hole in the plush part of this alligator toy in under 3 minutes, and that was just from normal chewing and not the tooth gnashing with her molars that she usually does.
So why 5 stars still? Because after that initial hole was created, we've asked her to be gentle with it, and she's done a fairly good job, leading to a toy that is still intact that she absolutely LOVES. No kidding, this is her new favorite "baby," although I do suspect that the next new toy she gets will then become her new favorite. Kids, amirite?
Anyway, I suspect that she loves this toy so much (aside from the fact that it's the newest one) because it's kind of like 2 toys in 1. She has a large rope toy that she adores and only gets to play with when closely supervised because otherwise she uses her teeth to effectively cut through all of the individual rope strings in no time flat. This kind of mimics that texture, but she gets to play with this one to her heart's content and so far hasn't done any appreciable damage to it. She also loves the texture of plush toys, and this one is large enough that she can really grab it in her mouth, but not so big that it takes any effort to carry around.
The squeaker has somehow managed to remain alive, and I attribute that to her being asked to be more gentle with this toy, since usually, the reason why she's making holes in plushies is to dig that most cherished little plastic squeaker out of her toys' guts.
This is actually a pretty expensive dog toy, though the current coupon price brings it to just under $15, which seems more reasonable, but still kind of pricey for something that your dog may chew completely through in 10 minutes.
If you don't have an aggressive chewer, this is a pretty great toy. If you do, be prepared to pay for a toy that will become a pile of innards in pretty short order.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Well-Made Toy That My Dog Loves, Great Quality and Fun
Color: Alligator(Green), Color: Alligator(Green)
This dog toy has been a great addition to our pup’s collection. It’s well made and feels like solid quality that will stand up to regular play, which is exactly what you want rather than something that falls apart after a few uses.
My Havanese absolutely loves it. The size is just right for small to medium-sized dogs, and we’ve had a lot of fun with tug-of-war and gentle fetch sessions. The texture and feel give her something satisfying to bite and carry around.
Pros:
Well made and durable, feels like it will last through many play sessions.
Great size for small to medium dogs like my Havanese.
Encourages play and interaction, perfect for tug-of-war and light fetch.
Nice value for the quality and price.
Easy to grip for both dog and human hands.
Cons:
Not ideal for extreme chewers; if your dog loves to destroy toys quickly, you might need a super-heavy-duty option.
A bit simple in design, no squeaker, but that’s just personal preference.
Overall, this is a solid, fun toy that delivers on quality and performance, and my dog genuinely enjoys it. Highly recommend. Still gets 5 stars!
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Reviewed in the United States on January 24, 2026