Singularity Computers Protium D5 Pump Top


The Protium D5 Pump Black Acetal Top has 5 ports, 4 inlets, and 1 outlet and almost endless possibilities for mounting. The ports are designed to be able to fit even the widest fittings on all ports including the front two ports.

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New Revision 2 Protium D5 Pump Top: Perfection is something that can never be achieved and so above all things we believe in progress. We are now up to revision 42 of our pump top as we have been slowly trying to perfect it over the years. After hundreds of small but important changes, we have now decided it is time to announce our new version. Revisions include flow and performance optimizations, thickening and strengthening. We have also improved our manufacturing process, precision, and our surface finishes, specifically our polished acrylic which is now truly crystal clear.


Protium is a set of components for creating pump and reservoir combinations that increase performance, mounting options, and flow inlet/outlet options and will be a feature in your build. We set out to create the most minimalistic and compact components, but at the same time provide the most options and compatibility. Our components are refined in ways only possible due to our 15 years of experience in liquid cooling. Each component is carved from a solid block of material in a CNC mill. Creating our different finishes, frosted and polished acrylic is unique and takes a lot of effort to manufacture. Protium is designed for enthusiasts who want to enjoy building systems with the freedom to create something individual.

Protium D5 Pump Top:

The Protium D5 Pump Top has 5 ports, 4 inlets, and 1 outlet, and almost endless possibilities for mounting. The ports are designed to be able to fit even the widest fittings on all ports including the front two ports. It has a unique lid design with a top thread which allows the pump top to be used on its own or for a reservoir to be attached directly. The pump top is square with ports facing at 90 degrees on all sides but one which allows for the cleanest tube routes. The pump top internal design is flow-optimized with a machined spiral and extremely close impeller tolerance for maximum performance. We take great pride in the finish on our acrylic, we have the clearest acrylic in the industry. Our acrylic polish took years to develop and perfect, it is crystal clear. This pump top is extremely compact and minimalistic but at the same time has the most compatibility compared to anything else on the market. It has 3 sets of M4 mounting holes on 3 sides for our different mounting systems meaning it can be rotated to face 3 different directions and mounted directly to a radiator.


Can be used on its own or with a reservoir.

Increases flow and cooling performance.

Vastly increases loop design options.

Inlet/outlet positions at 90 degrees for a cleaner loop.

Direct mounting to our Back Plates via the included stand-offs and fasteners.

Direct to radiator mounting & almost infinite mounting options with accessories separately available.

CNC milled Acrylic or Acetyl from a solid block.

Five ports, three side inlets, one top inlet, and one front outlet.

Just two components to create a full pump and reservoir combination.

Three material/finish options: Polished Acrylic, Frosted Acrylic, and Black Acetyl.

3mm LED mounting positions on acrylic versions.

Lighting features on the acrylic versions, frosted version is a light diffusor.

Compatible with all D5 pumps including Aquacomputer Aquabus and D5 Next.

16mm hardline compression fittings fit side by side and on all ports directly.


Pump top: H46 x W76 xL78mm (D5 Top Lid included)

Pump cover: H57 x W75 x L75mm.

D5 Pump Top and Cover combined: H90 x W76 x L76mm. (D5 Top Lid included)

D5 Pump & Reservoir Combination – Full assembly ( Quad port + stop fitting height):

Protium 100mm = 215mm

Protium 150mm = 265mm

Protium 200mm = 315mm

Protium 250mm = 365mm

Included Items:

Pump Top.

Pump Top Lid.

Stop Fittings x3.

Direct Mounting Stand-Offs x2.

M4 x8mm Countersunk Screws x2.

D5 Pump O-ring.

Reservoir Tube/Pump Top Lid O-ring.

Create a Combo:

To create the Protium D5 Pump and Reservoir Combo you need:

Protium D5 Pump Top.

Protium D5 Pump Cover.

Protium Reservoir.

D5 Pump (Any Standalone D5 pump)

Weight: 0.3 kg

Dimensions: 10 × 7.5 × 10.5 cm

Additional information


Black Acetal, Frosted Acrylic, Polished Acrylic


Singularity Computers

Singularity Computers provides custom-built PC, PC Rebuild & upgrade, case mods, custom-built components, and custom cases.
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