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16″ Shadow Overflow V2

(3 customer reviews)

$174.99

The NEW Shadow V2

 

In stock (can be backordered)

Save by adding these items to the Cart with the Shadow Overflow now!

Used for drilling 3/4″ Return bulkhead hole in tank.

SKU: Shadow16V2 Category:

Product Description

Shadow V2 LogoThe V2 Shadow® Overflow is the latest edition of the SHADOW® overflow system. With over 3 Years of feedback from the Shadow V1, we have made some major changes to the  NEW V2 Shadow® Overflow. Here are some of the new features:

New Features of the V2 Shadow® Overflow

  • New Sealed Rear Lid and Rear Box Design – Redesigned Rear Lid and Rear Box flange makes a water tight seal. This helps eliminates any salt creep issues that may formed with the V1 Shadow®.  We have designed the V2 Rear lid and Rear box to be virtually water tight and prevent salt creep from exiting the box.
  • Exterior Box Slip Fitting Openings Modified – We have modified the 3 x 1.5″ Slip fitting openings in the rear box to allow for better fitting of ANY 1.5″ PVC Pipe or Fitting. This means that you can now dry fit your PVC Pipes into the rear box holes without any worry of damaging the overflow that may have happened with the V1 Shadow®.
  • Re-Engineered Polymer Construction – The Rear Box Material has been changed to a  proprietary new polymer blend! This new polymer allows you to use ANY type of PVC or ABS glue or primer you choose. V1 Shadow® needed special glues to work, not anymore! This means that you can use any PVC Cement that you can find locally or have on hand already. It also makes the rear box even more durable than before!

It is still 100% Injection Molded for the highest quality and most precise fitment! Easy to install and very low profile. Check out the specs of this overflow system. It can be used with as little as 400 gph all the way up to 2500 gph. If you need more flow, just add a second box.

Featuring a removable weir for ease of maintenance and our molded design for fail-safe operation. Our ultra slim design has revolutionized the aquarium overflow and how aquariums get water into their filtration systems. It is a very simple to install, plug and play overflow system. Quiet operation when used to our specifications and tuned properly to your system. Our years of testing and development are what sets our overflow system apart from anything else available.

Designing the overflow –

Being reef hobbyists ourselves, we spent years working on the design of this overflow. We tested hundreds of variations and options before we came to this design. Our fundamental goal was to create a low profile and quiet internal overflow box, while maintaining the flow rates desired by reef hobbyist. We wanted an overflow system that everyone would want to use. Originally we  designed the overflow to fulfill a need for a high flow, quiet, plug and play operation. We built them by hand with flat sheets of acrylic. Using flat sheets for an intricate design like we envisioned was not possible. Designing the overflow with 3D software allows us to add features not possible when building it by hand out of flat acrylic. As we moved forward with the design we wanted to make a product that could be produced for everyone to enjoy. Injection molding was the answer. While it took us a long time to design and manufacture this overflow, it now is exactly where we wanted it to be.   This overflow system was designed by Synergy Reef Systems in the USA!

Manufacturing the overflow –

Injection molding allows us to make every part exactly the same. Every part is molded with the same tolerance and specification. Unlike hand build models, molding allows the Shadow to be precise in fit and form. We use the highest quality US produced Poly-carbonate and ABS in our molding process. Our quality is second to none! There are lots of imitation overflows out there, but ours is the highest quality available, period!

This is a self install kit. You can drill the tank and install this yourself! Instructions are located here: 16″ Shadow® Overflow Installation Manual

Drilling template is included with the overflow and we recommend you use the template when the overflow arrives to align it perfectly. But if you need the drilling template .pdf it is located here: 16″ Shadow Overflow Drilling Template

 

360° view of the overflow system

Full Screen Version located Here: HD Full Screen 360º View

 

 

Specs:

Up to 2500 Gallon Per Hour Flow Rates! That’s right. With 3 x 1.5″ Drains, this overflow can handle some flow! But if you have a smaller tank, you can use this overflow as well. We have customers using these on tanks as small as 10 gallons.

Front Overflow Box
16″ x 1.6″ x 5.5″ Injection Molded with durable Poly-carbonate material
Locking Removable Weir with VTeeth™ Technology ( Allows you to remove and clean the teeth of the weir)
Bulkheads are molded into the Front Overflow Box. Making this a 1 piece design.

Fits aquarium thickness from 1/4″ (6 mm) up to 3/4″ (19 mm)  Glass or Acrylic tanks

Rear Box
16″ x 3.75″ x 7″ Injection Molded Seamless Translucent Black Hi-Tech Polymer
3 x 1.5″ Slip fittings for easy plumbing with standard 1.5″ PVC Fittings
2 x U-Flow™ fittings that allow for compact plumbing
3 Pipe Full Siphon Overflow capability!
Removable Solid Black Poly-carbonate Cover that locks into place when closed (reduces noise, eliminates salt creep and light from entering the rear box)

What are some of the key features of the Shadow® Overflow

  • Injection Molded – Our overflow is 100% injection molded. This means that every overflow will be exactly the same. Being injection molded also means no glued seams that can leak, it is truly a “One Piece” design. We are the only company that injection molds this style overflow system. Injection molding  and precision 3D CAD designed components allows us more details and features than flat stock built overflows. Don’t settle for anything less.

OnePieceDesign

  • VTeeth™ – Our new Velocity Teeth allow for an even surface skimming flow into the overflow. This maximizes the surface skimming capabilities of the overflow as the flow rate increases. This also allows us to have a very small water level differential. Injection molded VTeeth™ are smooth without any rough surfaces, this provides a continuous smooth flow.
    VTeeth
  • U-Flow™ Pipes – Now included with every Shadow™ overflow is a set of U-Flow™ pipes. We have designed these fittings to maximize space inside of the outside rear overflow box. These compact fittings are not available off the shelf anywhere else. They allow us to fit our 1.5″ Fittings into such a small space.
    U-Flow
  • 1.5″ Plumbing – Standard 1.5″ plumbing capability. No other compact overflow on the market has the capability to use 1.5″ plumbing on such a small rear box. The 1.5″ can be reduced down to what ever size plumbing your tank requires as well.
  • Water Tight Locking Rear Cover – Our poly-carbonate rear box cover is not just a rectangle piece of material. It is a feature that was specifically designed to have a function and structure. We have designed the rear cover to lock in place when attached. It also features an exclusive channel system to keep water inside the rear box. No other overflow on the market can compare their lids to these!

 

 

  • Universal Fit – This will work on any non tempered glass and acrylic tanks from 1/4″ (6 mm) to 3/4″ (19 mm) Thick! Rimless and Plastic trimmed tanks all work!
  • Polycarbonate Construction – The front box and weirs are constructed out of bulletproof poly-carbonate. They are practically indestructible!
  • Locking, Snap Fit Weir – Removable locking weir with our new VTeeth™ for easy maintenance and cleaning. We have designed a simple slide fit that allow for a smooth action when removing the weir in tight spots under the trim on your tank. This means ZERO Clearance is needed to remove the weir when installed under a braced tank! This is a non-magnetic locking weir design that snaps into place.

16

  • Plumb it to your needs – Rear box allows for various plumbing combinations, including the popular full siphon system. We use our modified version for full siphon. Slip fittings are molded into the overflow rear box. No more bulkheads.

 

Designing the overflow –

Being reef hobbyists ourselves, we spent years working on the design of this overflow. We tested hundreds of variations and options before we came to this design. Our fundamental goal was to create a low profile and quiet internal overflow box, while maintaining the flow rates desired by reef hobbyist. We wanted an overflow system that everyone would want to use. Originally we  designed the overflow to fulfill a need for a high flow, quiet, plug and play operation. We built them by hand with flat sheets of acrylic. Using flat sheets for an intricate design like we envisioned was not possible. Designing the overflow with 3D software allows us to add features not possible when building it by hand out of flat acrylic. As we moved forward with the design we wanted to make a product that could be produced for everyone to enjoy. Injection molding was the answer. While it took us a long time to design and manufacture this overflow, it now is exactly where we wanted it to be.   This overflow system was designed by Synergy Reef Systems in the USA!

Manufacturing the overflow –

Injection molding allows us to make every part exactly the same. Every part is molded with the same tolerance and specification. Unlike hand build models, molding allows the Shadow to be precise in fit and form. We use the highest quality US produced Poly-carbonate and ABS in our molding process. Our quality is second to none! There are lots of imitation overflows out there, but ours is the highest quality available, period!

Includes the following with the kit:

  • Front Overflow Box
  • 1 Removable Polycarbonate Locking Front Weir
  • 2 Polycarbonate Bulkhead Nuts
  • Seamless Rear Box with 3 x 1.5″ Slip fittings
  • Locking Polycarbonate Rear Lid Cover
  • 2 U-Flow™ 90º Fittings
  • 4 Gaskets
  • Drilling Template (V1 and V2 are the same hole pattern)

Q. – What tank thickness will the Shadow Overflow work with?
A. – 1/4″ to 3/4″ Glass and Acrylic Tanks

Q. – What size aquarium will the 16″ Shadow Overflow work for?
A. – This is a great question and has many answers. The size of the aquarium is not what matters, it’s the amount of flow that you plan on running to your tank from your return pump. The 16″ Shadow Overflow can be used on tanks as small as 10 gallons up to tanks as large as 400 gallons. Each 16″ Shadow Overflow can handle up to 2500 Gallons Per Hour! So if you need more flow, just add more overflows!

Q. – Can this be used with freshwater aquariums?
A. – Absolutely! We have thousands of freshwater customers that use the Shadow Overflows. Any aquariums that will be using a Sump under the aquarium will work.

Q. – What is the difference between the 16″ and 20″ Overflows?
A. – The major difference is the 16″ is injection molded. This makes for a much higher quality and durable product. The 20″ is hand built from acrylic and only made to fit on tanks with glass/acrylic thicknesses of 3/4″ to 1.5″. The 20″ Overflows DO NOT fit on tanks with thicknesses less than 3/4″.

Q. – If I need more surface skimming, is the 20″ better?
A. – NO! This is actually not the case. Most people believe that a longer front weir makes more surface skimming. This is incorrect. Surface skimming is determined by how much flow goes thru the overflow, not the weir’s length. With both the 16″ and 20″ getting up to 2500 GPH, they have the exact same surface skimming capabilities.

Q. – Can the front weir (teeth) be removed for periodically cleaning?
A. – Absolutely! The front weir (teeth) are snap fitted into place and easily removed for cleaning. You can also purchase a second one as a spare or to use when cleaning the main one. You do not have to turn your aquarium off when you remove the weir either! Your aquarium will still run perfectly normal when the weir is removed, unlike other overflow designs on the market. The weir is also locked into place so it will not fall off while installed on the front box.

Share your thoughts!

4.67 out of 5 stars

3 reviews

Let us know what you think...

What others are saying

  1. ReefersMexico

    ReefersMexico

    By far, the best overflow I’ve ever owned, the quality of the product speaks for itself, quiet operation, flawless design, with backups for the die hard reefer, I mean, I will never build another tank without a synergy reef overflow. Keep up the good work Synergy! Thank you very much

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  2. Jason Rechtin

    GREAT OVERFLOW

    Jason Rechtin (verified owner)

    I would give this overflow 5 stars but the template needs adjusted. I think that this overflow needs to come with 2 templates. 1 for rimmed tanks and 1 for rimless tanks. My overflow sits to low in my tank and i even cut the template. Had I not cut it it would sit even lower in the tank. It says it does 2500 gph but i think that’s way short of what it really can do. I have 2 pumps at full power even with 2 gate valves closed about 1/4 to 3/8. If I had them wide open it would make noise. I would bet that this overflow is closer to 3500 to 4000 gph. I might even be short. As for the overflow itself it is a beast. I will forever be a customer of yours. Also if somebody is hesitant on the drilling process dont be it is very easy. I would also look into selling a drill press too. I had to buy mine from BRS but had you guys sold it i wouldve bought from you. Thank you for such great craftsmanship and also a speedy delivery. Thank you from your customer for life.

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    • 2 out of 2 people found this helpful
      Synergy Reef

      Synergy Reef

      Thank you for the feedback and for supporting our family business! The tricky part with rimmed tanks is that every tank manufacturer makes a different plastic trim kit with slightly different sizes. Our “How to Drill your aquarium for the Shadow® V1 & V2 Overflow Kits” Video. This will give you the process to make sure the overflow is aligned with any plastic rimmed aquarium. But we will definitely take that into consideration. Low flow to High Flow rates, That’s the Magic of the Shadow V2 Overflow. It works on so many different systems. 10 Gallon tanks up to 400 gallon tanks. It is so versatile!

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  3. nybumkin

    Covers All Aspects!

    nybumkin (verified owner)

    This system considers most of the design problems I can see with other units. The spacer kit for rimmed tanks (which I utilized), the lid that prevents salt creep and bowing of the exterior box and the removable weir for added service capability.

    This is a great system and only hope Synergy will come out with a smaller version, 12” wide would be great (40 breeder peninsula dimensions) 😀

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    • Synergy Reef

      Synergy Reef

      @nybumpkin Thank you for the review! With so many features built into the Shadow V2 overflow, it’s hard to beat! We are happy to hear that you are enjoying it. As for the smaller version, it is at least something we can hope for :-), But currently we don’t have any plans for one just yet.

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Shadow® V2 Overflow Installation Instructions – How to Install the Shadow® V2 Overflow

Additional Information

Weight8 lbs
Dimensions20 × 10 × 10 in

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