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Alphacool Eisdecke D5 Plexi Pump Review (2026): A Spec-Based Look

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This alphacool eisdecke d5 pump top review covers the Eisdecke D5 Plexi Pump Top V.3. It is a clear acrylic reservoir designed specifically for D5 pumps. The unit measures 3.15 x 3.15 x 1.57 inches with stands attached. It weighs 0.44 kilograms. You get five G1/4 inch ports for tubing connections. Three G1/4 inch plugs are included to seal unused ports. The pump itself is not included. This top provides a clean, visible look for your loop. The material allows you to see fluid flow and air bubbles clearly.

What stands out

  • Clear acrylic plexi material for visibility
  • Five G1/4 inch connection ports
  • Compatible with D5 pumps
  • Compact 3.15 x 3.15 inch footprint
  • Includes three G1/4 inch plugs

Who it fits

Good fit for

You should buy this if you use a D5 pump and want a clear view of your coolant. The five ports offer flexibility for tubing routing. The compact size fits most standard D5 pump mounts. The included plugs help keep dust out of unused ports. This top suits builders who prefer a minimalist, transparent aesthetic. It works well in open loop builds where visibility is key. The clear material complements colored coolants nicely.

Who should skip it

Skip this if you need a pump included. The listing clearly states the pump is not part of this package. Avoid it if you prefer a black or opaque look. The standard version is clear acrylic. A black option exists, but you must select it. Do not buy this if you need more than five ports. The dimensions are fixed with stands. You cannot adjust the height beyond the two available options.

Verdict: The Alphacool Eisdecke D5 Plexi Pump Top offers a clear, compact reservoir for D5 pumps with five connection ports. It is a solid choice for builders who prioritize visibility and standard port counts.

Key specs explained

Material: Plexi

This reservoir uses acrylic, often called plexiglass. Acrylic is clear and lightweight, allowing you to see coolant flow and air bubbles. It is less brittle than glass, making it safer for custom loops. You can clean it easily without special tools. This material suits builders who want a clean, visible aesthetic without the weight of glass.

Ports: 5x G1/4"

The top features five G1/4 inch threaded ports. This is the standard fitting size for most custom cooling components. You can connect tubing, pressure gauges, or fill ports directly. The extra ports offer flexibility for complex loop designs. This allows you to add sensors or bypass lines without needing adapters, simplifying your build process.

3x G1/4" plugs included

Three unused ports are sealed with included G1/4 inch plugs. This prevents leaks when you do not use all five connections. You can remove plugs later if you change your loop configuration. This feature ensures a secure seal for unused threads. It saves you from buying separate plugs and keeps your reservoir leak-free during initial setup.

Pump Compatibility: D5

This top is designed specifically for D5 style pumps. It fits the standard footprint of popular D5 pumps. You must purchase the pump separately, as it is not included. This ensures a proper fit and secure mounting. If you already own a D5 pump, this top is a direct match. It simplifies compatibility checks for your custom loop.

Dimensions with stands: 83 x 80 x 87mm

The unit measures 83 by 80 by 87 millimeters when stands are attached. These stands provide clearance for pump vibrations and tubing routing. The size fits standard case layouts. You should verify your case space before buying. The dimensions ensure the reservoir sits securely without obstructing other components. This helps you plan your loop layout effectively.

Design and build details

The Alphacool Eisdecke D5 Plexi Pump Top V.3 is constructed from clear acrylic, often referred to as plexiglass. This material choice prioritizes visibility, allowing you to monitor coolant levels and flow directly through the reservoir body. The listing specifies a weight of 0.44 kilograms, which is manageable for most custom loop builds without adding excessive strain to your tubing or fittings. The overall dimensions with stands attached are 83 by 80 by 87 millimeters, or approximately 3.15 by 3.15 by 1.57 inches. This footprint is compact enough to fit standard D5 pump footprints while maintaining a low profile within a case. The unit includes stands, which elevate the pump slightly for better airflow and cable management. You receive five G1/4 inch ports for fluid connections. Three of these ports are covered by included plugs, letting you configure the inlet and outlet positions to suit your loop layout. The clear finish ensures that the internal components remain visible, which is essential for aesthetic-focused builds. The design relies on the included stands for stability, so you must ensure your radiator or mounting surface is flat. This construction method keeps the unit lightweight while providing the necessary structural integrity for a pressurized system. The acrylic material is also easier to clean than glass, requiring only standard cleaning solutions. This practical design focuses on functionality and visual appeal without unnecessary complexity.

Installation and daily operation

You install this pump top onto a D5 pump. The listing confirms compatibility with this specific pump model. The unit includes stands that raise the reservoir. These stands add to the overall height. With stands attached, the dimensions are 83 by 80 by 87 millimeters. You must secure the top to the pump body using standard fittings. The reservoir features five G1/4 inch ports. These ports allow you to connect various tubing sizes or fittings. You have flexibility in routing your coolant lines. The listing includes three G1/4 inch plugs. You use these to seal unused ports. This keeps the system closed and prevents leaks. You do not need to purchase separate plugs for empty connections. The acrylic material is clear. This allows you to see the coolant level inside. You can monitor fluid volume without opening the case. Acrylic is also lightweight. The total weight is 0.44 kilograms. This keeps the load on your pump low. You can clean the surface easily. A soft cloth is sufficient for maintenance. You avoid abrasive materials to prevent scratches. The design prioritizes visibility and simplicity. You do not need complex software to operate it. It is a passive component. Your loop’s performance depends on your pump and tubing choices. This top simply holds the fluid. It connects to the rest of your system. You ensure all fittings are tight before filling. Regular checks of the coolant level are advisable. The clear material makes these checks straightforward. You can spot air bubbles or low levels quickly.

Before you buy this pump top

You must verify that your D5 pump fits the mounting pattern. This unit is a pump top, not a complete reservoir. You need to source the pump separately. The listing includes three G1/4 plugs, but you have five ports. You will likely need additional fittings for your loop. Acrylic requires careful handling to avoid scratches. Use only soft cloths and mild cleaners. Avoid abrasive materials. Check your radiator and tubing sizes. This top measures 3.15 by 3.15 inches. It adds height to your setup. Consider your case space. Compare this clear acrylic option with black versions or other materials. If you prefer a different look, other variations exist. Ensure your pump matches the D5 standard. This component integrates into custom loops. It does not work with pre-built AIOs. Plan your tubing routes around the stands. The stands raise the reservoir, which may affect clearance.

Check before you buy

  • Confirm your pump is a D5 model.
  • Check case clearance for the 87mm height.
  • Buy additional G1/4 fittings for unused ports.
  • Decide if clear or black acrylic suits your build.
  • Ensure you have the pump before purchasing.

The product at a glance

Alphacool Eisdecke D5 Plexi Pump Top

Best for: D5 pump users wanting clear visibility

Material
Plexi (acrylic)
Thread Size
G1/4
Radiator Size
40mm
Pump Compatibility
D5
Coolant Color
Clear
Dimensions
3.15 × 3.15 × 1.57 inches

View on Amazon: Alphacool Eisdecke D5 Plexi Pump Top Affiliate link

This is a clear acrylic reservoir top designed for the D5 pump. It features five G1/4 ports and includes three plugs. The unit measures 83 by 80 by 87 millimeters with stands. It weighs 0.44 kilograms. You need to buy the pump separately. This top suits builders who want a standard D5 footprint with visible fluid levels.

Pros

  • Five G1/4 ports for tubing connections
  • Clear acrylic material for visibility
  • Includes three G1/4 plugs
  • Compact dimensions with stands

Cons

  • Pump is not included
  • Only two height options available
  • Acrylic may scratch more easily than glass

Good fit if

  • You are using a D5 pump
  • You want clear fluid visibility
  • You need multiple connection ports

Skip if

  • You already own the pump and need a top
  • You prefer glass for scratch resistance
  • You need a different port configuration

Verdict: Alphacool D5 Plexi Pump Top is a practical choice for D5 pump users who value clear visibility and standard port layouts. It fits well in builds where you want to see the fluid level clearly.

Specifications side by side

Spec Alphacool Eisdecke D5 Plexi Pump Top
Material Plexi (acrylic)
Thread Size G1/4
Radiator Size 40mm
Pump Compatibility D5
Coolant Color Clear
Dimensions 3.15 × 3.15 × 1.57 inches
Weight 0.44 kilograms
Color Clear
Model 13189

Frequently asked questions

Does this pump top fit any pump other than the D5?

No, this unit is designed exclusively for D5 pumps. The product specifications list D5 as the only compatible pump model. You cannot mount it on other pump types like the DDC or D1.2. Ensure your loop uses a D5 pump before purchasing. It is not a universal reservoir top.

What is the actual weight of the unit with stands attached?

The unit weighs 0.44 kilograms. This weight includes the acrylic body and the attached stands. The stands are necessary for proper mounting height. This mass is manageable for most standard PC cases. It does not require additional support brackets due to its weight.

How clear is the acrylic material compared to glass?

The material is clear acrylic, often called plexiglass. It offers high visibility for monitoring coolant levels. Acrylic is less brittle than glass, reducing the risk of shattering. You can see fluid flow and air bubbles clearly. It is also easier to clean than glass reservoirs.

Are the G1/4 ports threaded for fittings?

Yes, the unit features five G1/4 threaded ports. These ports accept standard G1/4 fittings for tubing connections. The listing includes three G1/4 plugs for unused ports. You must source the remaining two plugs separately. This layout allows for flexible tubing routing in your custom loop.

What are the dimensions of the reservoir with stands installed?

With stands attached, the dimensions are 3.15 inches by 3.15 inches by 1.57 inches. The stands raise the reservoir body for better visibility and tubing clearance. The width and length remain square. The height includes the stand thickness. Check your case clearance against these specific measurements.

Is this a complete reservoir or just a pump top?

This is a pump top, not a complete reservoir. It mounts directly onto a D5 pump. You must purchase the D5 pump separately. The unit does not include the pump itself. It serves as the visible cover and fluid container for the pump.

See also