Kohree Water Pressure Pump 110V AC 4 GPM 50 PSI — Self-Priming with Adjustable Pressure

The Kohree 110V AC Water Pressure Pump is a self-priming 3-chamber diaphragm booster that delivers up to 4.0 GPM at 50 PSI for steady household and mobile water pressure.

Whether you need consistent water pressure in an RV, boat, cabin, or garden system, this Kohree pump is built to supply steady flow, minimize cycling, and simplify installation. It pairs a corrosion-resistant motor, thermal overload protection, and a quiet rubber mount to deliver reliable operation while remaining unobtrusive in living spaces. The included fittings and accessories make it plug-and-play for most 110V setups.

How does the Kohree pump maintain steady pressure for sinks and showers?

This model uses a smart pressure switch that senses demand and cycles the motor only when needed, keeping pressure consistent without constant on/off behavior. The adjustable range (40–70 PSI) helps tune performance to your system and reduce water hammer.

• 4.0 GPM flow rate provides continuous delivery for typical faucets and showers.
• Factory-set 50 PSI with adjustable switch for custom pressure.
• Design minimizes rapid cycling to extend pump life.
• Self-priming up to 9.8 feet to recover suction quickly.

What safety and durability features protect the pump?

The pump includes thermal overload protection to protect the motor from damage during dry-run or overload conditions. Materials and construction focus on corrosion resistance and vibration reduction for longer service life in harsh or mobile environments.

• Thermal overload guard prevents motor overheating and failure.
• Corrosion-resistant motor housing for marine and outdoor use.
• Rubber mounting base reduces vibration and noise (≤50 dB).
• Three-chamber diaphragm design improves reliability and reduces maintenance.

How easy is installation and what comes in the kit?

The Kohree pump ships as a complete kit aimed at quick, low-effort installation for DIYers and technicians alike. Included adapters and a clear manual let you connect to common hose sizes and 110V power without sourcing extra parts.

• Includes 1/2" barbed hose fittings and garden hose adapters for common plumbing.
• 50-mesh inlet strainer protects the pump from debris at the intake.
• Wall plug for 110–115V AC power and Teflon tape for leak-free threads.
• Compact footprint for easy mounting in RV compartments or utility closets.

Can this pump handle long-distance or off-grid pumping needs?

With a maximum lift of up to 148 feet and self-priming capability, the Kohree pump can move water uphill or over longer runs typical of gardens, rain barrels, or yard irrigation. It is suitable for intermittent duty in these settings, though continuous industrial use may require a different specification.

• Maximum lift approximately 148 feet for uphill or long-run applications.
• Self-primes to about 9.8 vertical feet for easy startup from tanks.
• Quiet operation favored for residential and mobile installations.
• Suitable for RVs, boats, cabins, irrigation, and car washing tasks.

Who is this for: The Kohree 110V AC Water Pressure Pump is aimed at RV and boat owners, homeowners with off-grid or auxiliary water systems, and DIY installers who want a compact, quiet, and reliable pressure booster. It fits applications that need moderate flow and pressure—sinks, showers, toilets, garden hoses, and short irrigation runs—while offering user-friendly installation and safeguards for longer equipment life.