Last Updated on by Victoria Linda
Welcome to our review of the best aquarium overflow boxes. Overflow boxes are responsible for moving water in the aquarium to under cabinet sumps without necessarily drilling the aquarium glass.
With these overflow boxes, it’s possible to use an under aquarium sump, wet/dry filtration system, or refugium, thereby giving more room for a wider variety of filtration methods without drilling the bottom of your fish tank.
Having said that, if you’re looking at the best aquarium overflow boxes to buy, you’re at the right place. So, at this point, why not check out the 6 best aquarium overflow boxes we’ve discovered for you below.
Buyers Guide: Things to Consider Before Buying a Dog Seat Cover
Size: One of the most significant thoughts, since we are thinking about an aquarium overflow box is the size. For a 4 foot 120 gallon tank, this would be a 40-gallon reproducer and for a 6 foot 125-gallon tank, this would be a 55-gallon tank. Keep your water level low, around 7-9 inches, in the sump and the rest of the space can be utilized as overflow security if the overflow or return pump fizzles.
Return Pump: For a cheap build, I would simply include an Italian made AC return pump like a Fluval SP. These pumps are made with the amazing Askoll siphon and are sponsored by a multi-year guarantee. Try not to go with a DC Pump for a budget build as you will probably be looking for modest Chinese made pumps, which can be heartbreaking on the off chance that they come up short and you do not have the financial plan to supplant. Different alternatives would incorporate a Sicce Syncra or an Aquaeon Quietflow for littler tanks.
Best Aquarium Overflow Boxes Compilation Chart
| Product | Features | Where to Buy |
| Eshopps Overflow Box
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Get it on Amazon |
| CPR Continuous Siphon Overflow
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Get it on Amazon |
| Blue Ocean Overflow Box
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Get it on Amazon |
| Aqueon Overflow Box
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Get it on Amazon |
| KollerCraft TOM RP3 Overflow Box
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Get it on Amazon |
| Your Choice Aquatics OF-Overflow Box
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Get it on Amazon |
Best Aquarium Overflow Boxes in Durability
Eshopps
Eshopps’ overflow boxes highlight bulkhead fittings for secure and helpful establishment.
Utilize these simple to-introduce overflow boxes to move aquarium water to under bureau sumps, refugiums, or wet/dry channels.
The gravity-feed system takes out the requirement for convoluted penetrating or aquarium adjustments.
| Pros | Cons |
| Durable | Expensive |
| Available in six sizes |
Blue Ocean
The blue sea 600 overflow box ceaseless siphon is intended for aquariums up to 125 gallons, flooding up to 600 gallons for each hour into your sump.
This quality assembled flood enclose built of acrylic for a long, helpful life and incorporates a 1-inch bulkhead fitting.
| Pros | Cons |
| Durable | Expensive |
| Has enough capacity |
Aqueon
The aqueon hold tight overflow boxes are developed of great acrylic to keep going until the end of time. Two sizes are accessible.
The model 34508 is a solitary flood for aquariums up to 125 gallons.
The model 34509 is a double flood (2 in the event that one gets stopped up) and is intended to support tanks for up to 400 gallons.
| Pros | Cons |
| Durable | only two sizes available |
| Easy to use |
Best Aquarium Overflow Boxes
CPR Continuous Siphon
These pre-channels move water from an aquarium to a filtration system without tank changes. CPR or nonstop siphon flood units skim up to multiple times more water than units with tubes. Can be hard plumbed with standard PVC pipe.
(Does exclude a hood.) Use of Aqua Lifter Pump is important to keep caught air from the siphon. Consolidate with Aqua Lifter Filter, an attractions style floss garbage channel, to boost the effectiveness and utilization of the Aqua Lifter Pump.
| Pros | Cons |
| Easy to use and set up | none found |
| Affordable |
KollerCraft TOM RP3
The KollerCraft TOM RP3 Overflow Box is the Cadillac of overflow boxes. This overflow box gives a simple association with sump-style channels without aquarium changes. The inherent anti-pump includes forestalls flooding during a force blackout and naturally primes and starts water stream back to the channel when electrical force returns.
The gravity-took care of the Venturi system naturally primes and starts the water stream to the sump channel rapidly. It is fit for taking care of pumps with up to 800 GPH stream rate. This overflow box estimates 8 x 7-1/2 x 6-1/2 inches (LxHxW) and mounts to tank outlines up to 1.75 inches thick.
The KollerCraft TOM RP3 Overflow Box is intended to take care of the KollerCraft TOM Rapids Pro RP3 Wet/Dry Filter System for a total filtration framework for saltwater aquariums up to 125 gallons.
| Pros | Cons |
| Well designed | Pricey |
| Built-in anti-siphon |
Your Choice Aquatics
Aquatics OF-overflow boxes are built of great cell cast acrylic and are accessible in five sizes to support aquarium from 30 gallons to 180 gallons in size.
Every one of these overflow boxes is of a self-preparing configuration to start working all alone in case of a force disappointment.
The surface skimming box incorporates a clamor lessening chamber froth sleeve for simple upkeep mechanical filtration and bulkhead fitting for a watertight activity.
| Pros | Cons |
| Includes a noise-reducing cylinder | None found |
| Easy to maintain |
How We Picked
Before publishing this post, more facts and data about these aquarium overflow boxes were gotten from further research and online reviews (both positive & negative). With the result and feedback we got, we were able to rank each product according to the standard we set.
If you observe the reviews carefully, you’ll see that each overflow box has been carefully categorized according to our research result. However, take note that the boxes that didn’t meet our standard were not included among this list.
Frequently Asked Questions
Conclusion
Having read our review, searching for the best aquarium overflow boxes wouldn’t be as difficult as it was. However, ensure you check out the necessary features, pros, and cons of your preferred choice before purchasing.