Best Aquarium Overflow Boxes of 2021

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

eshopper

  • Made of high-quality acrylic
  • Six sizes are available
Get it on Amazon
CPR Continuous Siphon Overflow

cpr continous

  • Easy to set up
  • Durable
Get it on Amazon
Blue Ocean Overflow Box

blue ocean

  • Durable
  • Large
Get it on Amazon
Aqueon Overflow Box

aquron

  • Easy to set up
  • Large
Get it on Amazon
KollerCraft TOM RP3 Overflow Box

kollercraft

  • Built-in anti-siphon
  • Well designed
Get it on Amazon
Your Choice Aquatics OF-Overflow Box

your choice

  • Well designed
  • Includes a noise-reducing cylinder
Get it on Amazon

Best Aquarium Overflow Boxes in Durability

eshopper

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

aquron

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 continous

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

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 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

What is the overflow box aquarium?

The overflow box holds tight the tank. On some overflow boxes, a water lifter siphon assists with making or restore guide after power blackout. The outside portion of an overflow box is a gravity channel that sends water to your sump through an aquarium drain hose. An arrival siphon at that point conveys water back to the display aquarium.

Do I need an overflow on my aquarium?

The overflow creates a hindrance between your showcase and the channel pipes which gives less open door for your fish getting trapped in the pipe and causing your tank to overflow. It isn’t necessary in every tank as there are a lot of approaches to drain the tank, be that as it may, it is one of the more secure ways.

How do overflow boxes work?

An overflow box is a gadget that sits on the lip of your aquarium. As water is guided from the aquarium, it is conveyed by gravity to the sump underneath, where it is sifted. At that point, an enormous return siphon in the sump conveys water back to the aquarium.

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.