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Manufacturer: Towle Whitney
Product Code: TW2018C
Availability: In Stock

Product Overview:

Reliable Performance. Compact Footprint. Smart Control.

The TW2018C-4T-4K from Towle Whitney is a duplex variable-speed booster system with integrated 100-gallon storage tank, designed to deliver consistent pressure and high efficiency in commercial water applications. Ideal for buildings with fluctuating water demands, this system alternates pump usage every 24 hours, extending equipment life and maximizing energy savings.

Built to fit through a 30-inch doorway, the TW2018C-4T-4K is compact, rugged, and engineered for long-term performance.


Available Models

* Standard Pump Options:

Choose the model that best suits your needs and press Add to Quote to begin your quote request. Once submitted, the request will be emailed directly to our team. Click View Submittal to review the pump curve and model-specific information.

Note: Common design points shown are examples of typical applications. Please refer to the full pump curve for the complete performance range.

SelectModelHPCommon Design PointsSubmittal
TW2018C-4T-4K1 HP20 GPM @ 50 PSI Boost
30 GPM @ 40 PSI Boost
Not Available

Common design points are examples of typical applications. Actual performance depends on incoming pressure,
desired set pressure, flow requirements, piping conditions, and system demand.

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Select a model and quantity, then add it to your quote. Repeat for additional models.

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Need help selecting the right model for your application?

Additional models and custom configurations are available.
Complete the questionnaire or contact us for help selecting a system.


Key Features:

  • Twin Walrus 4T-4K Pumps
    Each pump delivers up to 36 GPM with 60 PSI of boost. Constructed with cast iron (stainless steel available).

  • Smart Variable Frequency Drives (VFDs)
    Yaskawa iQpump Micro VFDs automatically maintain set pressure while alternating lead-lag pump operation every 24 hours.

  • 100-Gallon Poly Storage Tank
    Provides reliable water reserve, ideal for systems with inconsistent supply or backup requirements.

  • NEMA 1 Control Cabinet
    Optional upgrades to NEMA 4 and single-point electrical connection available.

  • Field-Reversible Copper/PVC Manifolds
    2" Type L copper and SCH 80 PVC, with plain end and grooved fittings provided.

  • Compact Steel Frame
    29" W x 42" H x 36" D. Pre-assembled with expansion tanks, valves, gauges, and disconnects.

  • Two Pneumatic Expansion Tanks (PLT-5)
    Each with 2-gallon capacity, rated for 125 PSI operation.

In an effort to provide the highest level of customer service we offer a limited three warranty on all of these water booster pump models. All of the model specific data sheets have a page dedicated to discussing the warranty, but don’t hesitate to reach out with additional questions.

3 Year warranty

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