SLD 20000-40000 Adjustable Flow Pond Pump

The SLD 20000-40000 Adjustable Flow Pond Pump is a professional-grade, submersible pump made for continuous use in ponds, Pondless® Waterfalls, and other water feature applications. Solids-handling, asynchronous motor technology provides superior reliability, reduced maintenance, and a maximum flow rate of 36 000 l/h. The design allows the pump to handle solids effectively, resulting in less maintenance and trouble-free performance.

The included Smart Control Receiver includes an integrated control panel and makes it easy to control your pump with the Aquascape Smart Control App, including flow adjustment and customized scheduling. An optional Universal Remote for Adjustable Flow Pumps (Item #45041) is available separately to allow wireless control without the use of a smartphone or tablet. The pump is also backed by a limited 3-year warranty, ensuring year after year of reliable use.

SKU: 45037UK Categories: ,

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WARNING - California Proposition 65
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This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Ce produit contient des produits chimiques reconnus par l'État de Californie pour causer le cancer et des malformations congénitales ou d'autres problèmes de reproduction. Pour plus d'informations, visitez

  • Professional-grade, adjustable flow pond and waterfall pump providing flow rates up to 36 000 LPH
  • Solids-handling, asynchronous motor design provides superior reliability with less maintenance
  • Includes Smart Control Receiver for quick and easy pump control using the Aquascape Smart Control App or on-board controls
  • Ideal for use in ponds, Pondless® Waterfalls, and other water features
  • 3-Year Limited Warranty

NOTE: Avoid leaving the receiver in direct sunlight. We recommend installing in a cool, shaded area, if possible.


SLD Pump Flow Chart (LPH)
ModelMax Head Height00.511.522.533.544.555.566.577.58.2
8000-200005 m25000244202301021580203101796015860131201190085000
15000-300007.5 m33500327253195030680291602722025930226202037017590156401261010660734359850
20000-400008 m3780036980361603485032880305002901026190238702176018910161601461011890584537500
Item Number(s)45046UK45036UK45037UK
Maximum Flow Rate (LPH)25 00033 50037 800
Adjustable Flow
Maximum Head Height (m)57.58.2
Motor TypeAsynchronousAsynchronousAsynchronous
Power Cord Length10 m10 m10 m
Pump Discharge Diameter2" FPT2" FPT2" FPT
Pump Inlet Diameter2"2"2"
Ideal Pipe Diameter2" or 3"2" or 3"2" or 3"
App/WIFI Connected
Pump Dimensions (cm)33 L x 16 W x 18 H33 L x 16 W x 18 H33 L x 16 W x 18 H
Warranty3-Year Limited3-Year Limited3-Year Limited
Packaged Weight (kg)789

Control Aquascape Water Features with Your Smartphone or Tablet

The Aquascape Smart Control App makes it easy to connect and control devices on your smartphone or tablet, providing a variety of wireless control functions, including flow adjustment and customized scheduling. To learn more about the Aquascape Smart Control App visit