--- product_id: 68543846 title: "DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation" brand: "orlushy" price: "495.85 DT" currency: TND in_stock: false category: "Orlushy" url: https://www.desertcart.tn/products/68543846-dc-4000-silent-swirl-controllable-dc-aquarium-pump-25w-1050gph store_origin: TN region: Tunisia --- # Powerful 25W brushless motor Ultra-quiet sine wave tech 20 speeds + 3 modes control DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation **Brand:** orlushy **Price:** 495.85 DT **Availability:** ❌ Out of Stock ## Summary > 🌊 Silence meets power: The ultimate aquarium pump for pros who demand control and calm. ## Quick Answers - **What is this?** DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation by orlushy - **How much does it cost?** 495.85 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/68543846-dc-4000-silent-swirl-controllable-dc-aquarium-pump-25w-1050gph) ## Best For - orlushy enthusiasts ## Why This Product - Trusted orlushy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Whisper-Quiet Operation:** Sine wave frequency conversion and ceramic shaft core ensure near-silent pump performance—perfect for serene home or office aquariums. - • **Versatile Nozzle Options:** Includes 3 nozzle sizes for seamless adaptation across marine, freshwater tanks, ponds, fountains, and hydroponic setups. - • **Customizable Flow Control:** Easily tailor water movement with 20 adjustable speeds and 3 modes (Constant, Wave, Feed) via intuitive external controller. - • **Confidence-Backed Warranty:** Enjoy peace of mind with a 180-day warranty covering nozzles, screws, and controller—plus responsive customer support. - • **Energy-Efficient & Durable:** Low-voltage 24V DC with pure copper brushless motor delivers powerful 1050 GPH flow while maximizing lifespan and safety. ## Overview The Orlushy DC-4000 is a 25W, 1050 GPH submersible aquarium pump featuring ultra-quiet sine wave technology, a durable brushless copper motor, and a versatile external controller with 20 speed settings and 3 operational modes. Designed for both saltwater and freshwater environments, it includes multiple nozzle sizes for diverse applications and comes with a 180-day warranty for reliable, long-term use. ## Description desertcart.com : Orlushy DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation : Pet Supplies ## Features - Ultra-quite Operation Design: Adapting sine wave frequency conversion technology, sounds can barely be heard when the water pump is operating. With ceramic shaft core to reduce friction and 4 rubbers base to absorb friction, the pump runs even silently. Even if it is used indoor, it will not disturb your life. - Safe and Durable DC Pump: This aquarium dc pump is working under low voltage of 24V, which has excellent security and stability, greatly reducing security risks in submersible use. Meanwhile, the pure copper brushless motor makes the pump much more durable, powerful and energy-saving, pumping out enough water flow while serving longer operation life. It is suitable for marine and fresh water. - 20 Speeds and 3 Modes Adjustable: With external controller, there is 20 speeds adjustable by pressing “+” or “-” button. Besides, and 3 operation modes is switchable by pressing the “MODE” button to switch back and forth between “Constant Flow Mode” and “Wave Mode”, “fish” button to enter the “Feed Mode”. Those flexible adjustment of speed and mode suitable for various sizes of fish tanks. - Multi-size Nozzles for Versatile Use: 3 Different sizes nozzles come with this aquarium return pump, which allow the pump to be applied to versatile usage scenarios, such as aquariums, fish tanks, ponds, fountains, waterfalls, hydroponic. Please choose the right one according to the specifications. - 180 Days Warranty: This return pump has 180 days warranty that free replacement of the nozzle, screws and controller are provided. If you have any issue with the water pump, please feel free to contact us. We would provide a timely after-sale service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07C52Q4R1 | | Best Sellers Rank | #22,237 in Pet Supplies ( See Top 100 in Pet Supplies ) #55 in Aquarium Water Pumps | | Brand Name | Orlushy | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (478) | | Flow Rate | 17.6 gpm | | Horsepower | 25 watts | | Item Dimensions L x W x H | 2.64"L x 1.3"W x 1.58"H | | Manufacturer | aquariumstation | | Manufacturer Part Number | 43237-2 | | Material Type | Copper | | Maximum Lifting Height | 11.5 feet | | Model Number | 43237-2 | | Number of Items | 1 | | Power Source | dc | | Product Style | Submersible | | UPC | 634759664451 | | Unit Count | 4 Count | | Voltage | 24 volts | ## Product Details - **Brand:** Orlushy - **Color:** Black - **Horsepower:** 25 watts - **Material:** Copper - **Maximum Flow Rate:** 17.6 gpm - **Maximum Lifting Height:** 11.5 feet - **Power Source:** dc - **Product Dimensions:** 2.64"L x 1.3"W x 1.58"H - **Style:** Submersible - **Voltage:** 24 volts ## Images ![DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation - Image 1](https://m.media-amazon.com/images/I/71Nyw3B4vxL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How do i get a 20mm replacement nozzle for this pump ?** A: I have been trying to reach this seller for quite some time now without any success. I have used the email address on the box as well as tried messaging them here.... no luck **Q: How do i set this product to be on a steady flow. The manual isn't clear.** A: If you press the mode button it switches between 3 digit numbers starting with a 1 or a 2. anything starting with 1 is steady flow. If you decide to use wave mode though the number preceded by 1 also affects wave mode. The number preceded by 1 appears to affect duration of the pulse where as the number preceded by 2 affects the time between pulses if the fist number is set to high the pump runs continuously regardless because the cycle doesn't end before the second begins. So long story short if I set the first setting to 101-104 then set the second number to 209-210 my tank really rocks and roles. Timing and duration are key to getting a wave going. **Q: Can I use this pump externally?** A: Yes and No. Mine leaked external. I had to silicone it by unscrewing it and sealing it completely with silicone. Now it doesn't leak and is external. Caveat Emptor. But, so far a great pump. **Q: Is it submsial?** A: yes, i have 2 of the 18000 models and they are both submerged ... ## Frequently Bought Together - Orlushy DC-4000 Silent Swirl Controllable DC aquarium Pump 25W 1050GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater coral reef fish tank sump Circulation - Multipurpose U Return Pipe Directional Pipe tube 3/4'' ~ 1" Duck Bill Hose - Reefing Art Ceramic Bio Filter Media Vast Surface Area for Aquarium Sump Canister (1 Box / 24 pcs) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/68543846-dc-4000-silent-swirl-controllable-dc-aquarium-pump-25w-1050gph](https://www.desertcart.tn/products/68543846-dc-4000-silent-swirl-controllable-dc-aquarium-pump-25w-1050gph) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-15*