Description

Maxspect Jump DC Pump 12K — 3,170 GPH

Maximum Flow. Serious Head Pressure. Complete Control.

When you're building a large reef aquarium, high-capacity filtration system, fish room, or custom installation, your return pump needs to do more than simply move water.

It needs enough capacity to overcome real-world head pressure, enough control to fine-tune your system, and enough performance to keep up as your aquarium grows.

The Maxspect Jump DC Pump 12K is the flagship of the Jump DC return pump family.

Delivering up to 12,000 L/H / 3,170 GPH, the Jump 12K combines high-capacity DC performance with Maxspect Sine Wave Technology, 20 speed settings, Feed Mode, two pulse modes, and up to 5 meters / 16.4 feet of maximum head height.

For large reef aquariums and demanding filtration systems, the Jump 12K gives you the ability to move serious water while maintaining the control needed to dial in your system precisely.

Maximum Capacity. Minimum Noise. Total Control.

That's what makes the Jump 12K the flagship choice for large reef systems.

Why Choose the Maxspect Jump DC 12K?

💨 Up to 3,170 GPH of Controllable Flow

The Jump 12K delivers a maximum flow rate of 12,000 L/H / 3,170 GPH, making it the highest-capacity model in the Maxspect Jump DC lineup.

But the real advantage isn't simply the maximum number.

The Jump 12K can be adjusted from approximately 1,321 to 3,170 GPH, giving you the flexibility to match pump output to the actual requirements of your aquarium.

That means you can:

• Fine-tune display turnover
• Match your overflow capacity
• Balance flow through your sump
• Compensate for vertical lift
• Account for plumbing restrictions
• Optimize mechanical filtration
• Adjust flow around UV and reactors
• Increase flow as your reef grows
• Keep additional capacity available for future upgrades

Run the flow your reef needs today—with the capacity to do more tomorrow.

📈 16.4 Feet of Maximum Head Pressure

For large aquariums, head pressure matters just as much as maximum GPH.

The Jump 12K is rated for up to 5 meters / 16.4 feet of maximum head height.

That makes it particularly useful for demanding installations where the return pump must push water through significant vertical lift or restrictive plumbing.

The Jump 12K is an excellent choice for:

• Large display aquariums
• Tall aquarium stands
• Fish rooms
• Remote sumps
• Long plumbing runs
• Large filtration systems
• Custom aquarium installations
• Systems with multiple plumbing fittings
• High-flow mechanical filtration

WWC Tip

Never choose a return pump based only on its maximum GPH rating.

A pump's published maximum flow is measured under ideal conditions. Your actual flow will depend on vertical lift, plumbing diameter, elbows, valves, fittings, and other restrictions.

The advantage of the Jump 12K is having substantial capacity available so you can reach your desired flow without necessarily operating the pump at 100%.

🤫 Near-Silent Sine Wave Technology

A large return pump doesn't have to sound like one.

Maxspect's Sine Wave Technology is designed to drive the pump motor with a smoother electrical waveform than traditional pump technology.

The result is smoother operation with reduced vibration and operating noise.

That's particularly valuable when a large aquarium is located in a living room, office, bedroom, or other space where pump noise becomes noticeable.

Serious flow should not require serious noise.

The Jump 12K is designed to deliver both.

🎛️ 20 Speed Settings

Large reef systems don't all require the same amount of return flow.

The Jump 12K controller provides 20 flow-speed settings, allowing you to precisely adjust output to match your system.

This gives you the flexibility to tune your pump around:

• Aquarium turnover
• Overflow capacity
• Sump design
• Mechanical filtration
• Protein skimming
• UV sterilization
• Media reactors
• Refugiums
• Plumbing restrictions

As your system changes, simply adjust the pump.

You don't have to replace your return pump every time you upgrade your reef.

🍽️ Convenient Feed Mode

The Jump 12K includes three selectable Feed Mode durations: 10, 20, or 30 minutes.

With a simple controller adjustment, you can temporarily reduce circulation during feeding, helping keep food in the display rather than immediately sending it toward the overflow.

Once Feed Mode ends, the pump returns to its normal operating setting.

It's a simple feature that makes everyday reef maintenance easier.

🌊 Two Pulse Modes

The Jump 12K also includes two pulse modes, giving advanced reef keepers additional flexibility when configuring water movement.

While the pump's primary role is return circulation, the additional modes give you another tool for experimenting with your system's overall flow strategy.

🔄 Built for Large Filtration Systems

The Jump 12K is designed for systems where substantial water movement through the sump is required.

Its high-flow capacity makes it an excellent candidate for large filtration systems incorporating:

• Oversized mechanical filtration
• Large protein skimmers
• UV sterilizers
• Multiple media reactors
• Refugiums
• Algae filtration
• Large sump systems
• Remote filtration rooms
• Multiple filtration stages

Because the pump is fully adjustable, you can tune the return rate around the entire filtration system instead of forcing every component to work around a fixed pump output.

🧰 Large-System Plumbing Connections

The Jump 12K is built around larger plumbing requirements and includes 1¼-inch and 1½-inch barbed output couplings.

That makes it especially well suited to high-flow plumbing configurations where maintaining adequate pipe diameter is important.

WWC Plumbing Tip

If you're installing a high-capacity return pump, don't immediately reduce the plumbing size at the pump outlet.

Smaller plumbing increases restriction and can significantly reduce the flow you actually get from the pump.

Whenever possible, use appropriately sized plumbing throughout the return path and minimize unnecessary elbows, restrictions, and sharp transitions.

The pump can only deliver the flow your plumbing allows.

⚡ 120W High-Capacity DC Performance

The Jump 12K is rated at 120W maximum power consumption and operates at DC24V / 6.35A.

Because the pump is adjustable, you don't have to operate it at maximum output when your aquarium doesn't require it.

This gives you the ability to balance:

Flow + head pressure + filtration requirements + energy consumption

based on the actual needs of your system.

📐 Built for Large Systems

The Jump 12K uses the larger pump housing shared with the 10K model.

The pump measures approximately:

8¼" × 4¼" × 3½"

and weighs approximately 3.9 lb.

Before purchasing, make sure your sump has enough room for the pump and that your plumbing can accommodate the 1¼" or 1½" outlet connections.

Is the Maxspect Jump 12K Right for Your Aquarium?

The Jump 12K is designed for reefers who need maximum return-pump capacity from the Jump DC family.

It is especially well suited for:

• Large reef aquariums
• SPS-dominant systems
• Heavily stocked reef systems
• Large fish-only aquariums
• Fish-room installations
• Remote-sump systems
• Custom aquarium builds
• Large filtration systems
• High-flow mechanical filtration
• Long plumbing runs
• Systems with significant vertical lift
• Reefers planning future expansion

WWC Recommendation

If you're deciding between the Jump 10K and Jump 12K, look closely at your actual operating conditions.

The 12K becomes particularly attractive when you need:

More available flow + more system headroom + the ability to operate below maximum output.

If your system only requires 1,500–2,000 GPH at its actual operating head, you may not need the additional capacity.

But if you're building a large system and want substantial room for future upgrades, the Jump 12K gives you that extra capacity.

The goal isn't to run the biggest pump at 100%. The goal is to have the right pump with enough capacity to operate where your system performs best.

Maxspect Jump DC Pump 12K Specifications

• Model: MJ-DC12K
• Maximum Flow: 12,000 L/H / 3,170 GPH
• Adjustable Flow: Approximately 1,321–3,170 GPH
• Maximum Head: 5 m / 16.4 ft
• Power Consumption: 120W
• Voltage: DC24V
• Current: 6.35A
• Pump Dimensions: 8.27" × 4.33" × 3.66"
• Pump Weight: 3.9 lb
• Output Connections: 1¼" / 32 mm and 1½" / 40 mm
• Speed Settings: 20
• Feed Modes: 10 / 20 / 30 minutes
• Pulse Modes: 2
• Controller: External digital controller with LED display
• Operation: Submersible only
• Technology: Sine Wave Technology

Maxspect's current specifications confirm the 12,000 L/H maximum flow, 120W power rating, 5 m / 16.4 ft maximum head, 210 × 110 × 93 mm dimensions, 1.75 kg pump weight, and 1¼"/1½" couplings.

What's Included?

• Maxspect Jump MJ-DC12K Pump
• Digital Controller & Controller Bracket
• Power Adapter
• Cord Organizing Accessories
• 1¼" Barbed Output Coupling
• 1½" Barbed Output Coupling

WWC Quick Take

⭐ Our Take on the Maxspect Jump DC 12K

Best for: Large reef aquariums, custom installations, fish rooms, high-flow filtration systems, and reefers who want substantial return-pump capacity.

Maximum flow: 3,170 GPH

Adjustable range: 1,321–3,170 GPH

Maximum head: 16.4 ft

Power: 120W

Output: 1¼" / 1½"

Why We Like It

The Jump 12K is the flagship return pump of the Jump DC series.

You get serious capacity without giving up the features that make a modern DC pump easy to live with:

✔ 3,170 GPH maximum flow
✔ 16.4 ft maximum head
✔ 20 speed settings
✔ Near-silent Sine Wave Technology
✔ 10/20/30-minute Feed Mode
✔ Two pulse modes
✔ 1¼" and 1½" output options
✔ Compact high-capacity design
✔ Adjustable output for future system changes

For a large reef system, that combination of capacity and control is what makes the Jump 12K compelling.

WWC Tip: Don't Confuse Maximum Flow With Actual Flow

This is one of the most important things to understand when buying a return pump.

3,170 GPH is the pump's maximum flow—not necessarily the flow your aquarium will receive.

Your actual return flow depends on:

• Vertical lift
• Plumbing diameter
• Number of elbows
• Valves
• Unions
• UV sterilizers
• Reactors
• Filters
• Plumbing length
• Other restrictions

The Jump 12K's 16.4-foot maximum head rating gives you substantial capacity to overcome real-world installation demands.

For the best performance, size your plumbing appropriately and select your pump speed based on the flow your aquarium actually needs.

The Flagship Jump DC Return Pump

Large reef systems require equipment that can keep up.

The Maxspect Jump DC Pump 12K gives you 3,170 GPH of maximum flow, 16.4 feet of maximum head, 20 speed settings, 120W DC performance, Feed Mode, pulse modes, and Sine Wave Technology in one controllable return-pump platform.

Whether you're building a large mixed reef, SPS system, fish-heavy aquarium, remote-sump installation, or custom fish room, the Jump 12K gives you the capacity to move serious water while maintaining the control to fine-tune your system.

Build Your Reef Around the Flow You Need

Choose the Maxspect Jump DC Pump 12K at Worldwide Corals and give your large reef system the powerful, quiet, controllable return flow it deserves.