SHURflo pumps are diaphragm pumps designed for reliable fresh water supply, liquid transfer, spraying, and pressure boosting in marine, RV, agricultural, and industrial applications. Their self-priming diaphragm design, automatic demand control, and pressure switch provide consistent water flow while maintaining stable system pressure. Built with durable materials for high performance and long service life, they are widely used in freshwater systems, livewells, ballast, irrigation, and transfer applications.
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1-2 weeks delivery time SHURflo 8050-325-426 12V self-priming oil and water disposal pump set with a 13 L storage container. The pump delivers up to 5.6 L/min and includes thermal overload protection, a 2.4 m electrical cable with battery clips, reversible contactor and hose kit. Flow rate varies with oil temperature.
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$ 515.78
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1-2 weeks delivery time SHURflo self-priming drill-driven pump for oil changes and liquid transfer. Delivers a flow rate of 757 L/hour and is driven through a 1/4" / Ø6 mm drill shaft. Equipped with Ø19 mm ports and supplied with a 2.40 m hose.
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$ 63.36
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1-2 weeks delivery time SHURflo replacement upper housing and pressure switch kit for 20 PSI pump systems. Designed for servicing or replacing the upper housing and switch assembly. Product code: 94-231-25.
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$ 37.12
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1-2 weeks delivery time SHURflo replacement valve assembly kit for Extreme Pro Blaster 5900 Series pumps. Designed as a service and replacement component for the pump valve assembly. Product code SH94-669-00, EAN 752324010233.
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$ 43.87
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1-2 weeks delivery time SHURflo replacement upper housing assembly for 4900 Series pumps. Designed as a service component for replacement of the pump’s upper housing assembly. Product code SH94-670-01, EAN 752324010226.
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$ 37.76
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1-2 weeks delivery time SHURflo replacement upper housing for 2900 and 3900 Series pumps. Designed as a service component for replacement of the existing pump upper housing. Product code SH94-706-01, EAN 752324010189.
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$ 26.50
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1-2 weeks delivery time SHURflo replacement diaphragm and drive assembly for 2900 and 3900 Series pumps. Designed as a service component for restoring the pump’s diaphragm and drive section. Product code SH94-706-06.
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$ 67.25
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1-2 weeks delivery time SHURflo flexible coiled hose designed for ProBlaster pumps. The hose is 7.6 m long, rated for pressure up to 3.1 bar and suitable for use with fresh water or sea water.
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$ 106.89
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1-2 weeks delivery time SHURflo Blaster spray nozzle for high-pressure pump systems, with adjustable water flow and a working pressure of 3 bar. Suitable for use with both fresh water and sea water.
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$ 18.19
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What is the purpose of a diaphragm demand water pump in a marine fresh water system?
A diaphragm demand water pump automatically supplies fresh water only when needed, maintaining consistent water pressure throughout marine water systems while reducing power consumption. Its self-priming diaphragm design, pressure switch, internal bypass, and durable valves provide reliable operation for freshwater supply, washdown, livewell, water transfer, and spraying applications on boats, recreational vehicles, and other mobile systems.
Built for dependable performance, these pumps are available in a range of flow rates and pressure ratings, making them suitable for continuous-duty operation in demanding marine and industrial environments.
How does a SHURflo 12V diaphragm fresh water pump maintain consistent water pressure during continuous operation?
A 12V diaphragm fresh water pump maintains consistent water pressure by combining an automatic-demand system, pressure switch, and self-priming diaphragm design that adjusts water flow to match changing demand. Built for reliable performance, it delivers stable output across a wide range of flow rates and pressure levels, making it suitable for freshwater supply, washdown, RV water systems, agricultural spraying, and other water pumping applications.
Its durable construction, including heavy-duty housing, corrosion-resistant materials, and efficient valve design, supports dependable long-term operation in demanding
How do different GPM ratings, such as 3.5 GPM, influence the performance of a 12 volt diaphragm water pump?
Different GPM ratings determine how much water a diaphragm pump can deliver each minute, allowing users to match flow capacity to the needs of freshwater, washdown, RV, livewell, water transfer, or spraying applications. Lower-flow pumps, such as 1.8 GPM models, are well suited for light-duty water systems, while 3.5 GPM, 4.0 GPM, and 5.3 GPM versions provide higher flow for more demanding applications, all while maintaining stable pressure and efficient operation.
When combined with a self-priming diaphragm design, durable valve materials, and reliable pressure control, the appropriate GPM rating helps ensure consistent performance, efficient water delivery, and long service life in marine and mobile water systems.
How does a SHURflo Pumps diaphragm pump differ from other marine water pump designs?
A SHURflo Pumps diaphragm pump differs from many other marine water pump designs by using a flexible diaphragm and check valves to provide smooth, self-priming operation while maintaining consistent water pressure without continuous motor operation. Its design supports reliable performance in 12VDC freshwater systems, while compatible fitting options simplify integration into a wide range of onboard plumbing layouts and help deliver efficient high flow operation with minimal maintenance.