Ultum Nature Systems (UNS) 30A 7 Gallon (Black Filter Wall) Dual All-In-One (AIO) Lid


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Sale price$79

Free Shipping available on Ultum Nature Systems (UNS) 30A 7 Gallon (Black Filter Wall) Dual All-In-One (AIO) Lid in the Continental USA

Product Information

Lid Styles


Kraken Reef lids are designed with your tank inhabitant's safety in mind while keeping your aquarium's stunning aesthetics. Our lid frame is proudly machined in the USA by Kraken Reef using a state of the art CNC from a single sheet of clear 3/8" polycarbonate stock. Installed in the middle of the lid is 1/4" polyethylene clear plastic mesh which is secured by a serrated vinyl retainer spline. If you intend to house smaller specimen (~1/4" diameter or less), we recommend the use of our Evaporation cover, or mesh is also user replaceable if you would prefer to change to a smaller mesh.


If the PREMIUM FEED style is selected, it will include a feed opening/hole in the frame, on the front right corner for single piece lids or choice of front side (to include both) on multi piece lids and also includes a 3D printed cover made from reef safe 3D printed PETG plastic in black (additional colors available for purchase). Note: Some fish may have the power to jump and knock free the standard feed cover, in this case we would recommend use of the optional Feed Cup add-on to provide additional piece of mind.




The lid is secured in place on your aquarium by a machined lip around the perimeter of the lid. The machined lip will extend to ~1mm from the outside edge of your aquairum. The inner portion of the frame is recessed below the top of the aquarium glass and the outer portion of the frame rest on top of the aquarium glass. The lid can easily be removed in seconds from the aquarium for maintenance or cleaning with no tools.




The All-In-One (AIO), with the filtration area and overflows located at the rear of the aquarium, remain open and are not covered by the lid. This allows for equipment changes and updates without worrying about having to modify your new Kraken Reef lid. The lid frame will stop ~1mm from the back side of the filter wall. On some AIO aquariums, the filter wall is lower than the top of the glass. This may result in a small gap between the top of the filter wall and the lid. It is recommended that you install an item to extend the filter wall height to reduce this gap to 1/8" or less.



Cord slots and cutouts are optional. Cord slots will protrude into the tank display area 8mm x 12mm if placed along the edge or 12mm x 12mm if placed on a lid corner. Note: Cutout(s) for light mounts may be required if the light mount is located in the same location as the lid.


Optional Add-ons

EVAPORATION COVER: Kraken Reef evaporation covers allow you to have that convertible top option. This removable solid polycarbonate piece is designed to help reduce water evaporation in your aquarium. The cover will be made from 1/4" nominal clear polycarbonate. The cover is secured in place on your lid by a machined lip around the perimeter of the cover, with the inner portion of the cover being recessed below the top of the lid. Note: Condensation may build up on bottom of cover, and reduction of light output into the aquarium (PAR) may occur. Also, weight of the cover may cause deflection in the lid when installed.



PREMIUM FEED COVER: Kraken Reef premim feed covers are designed for the premium feed style lid. A black version of the cover is included when you purchase the premium feed style lid. Additonal colors are available in reef safe 3D printed PETG plastic.





FEED CUP: Kraken Reef feed cup is a convenient and hassle-free way to feed. This cup fits inside the PREMIUM FEED feed hole and allows placement of frozen food to defrost while still keeping your inhabitants safe. Multiple colors available in reef safe 3D printed PETG plastic. Note: The premium feed cover is not used when the feed cup is installed.


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Important Information

All lids are made to order. Current production lead times are displayed at the top of page. Production lead time for lids begins when your order is placed (production lead time denotes the duration required for a product to navigate through our production pipeline regardless of lid size, cutouts and/or modifications) and ends when your order is packaged and shipping label is created. If purchased with other items, it may be shipped separately via USPS First Class Mail or suitable substitute delivery method. Polycarbonate may have superficial tooling marks and/or scratches due to the machining process. Due to the implementation of a larger mesh retaining spline (to have a better/stronger hold on the mesh), there may be visible deflection/curvature of the lid frame, this will naturally reduce during normal lid use. Guarantees of livestock are not implied. Returns/refunds are not authorized.

Photos and graphics depicted on this product page may not be of the specific aquarium model and may have a different shape, orientation, optional cord slots, cutouts and/or add-ons. Light mount cutouts and cord slots are not included by default. These photos and graphics are for reference of the general lid design.

If damage during shipping occurs, notify us immediately at info@krakenreef.com.

Lid use and cleaning instructions may be found on the page linked at the bottom.

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