Par-Max HD4 Heavy Duty Water Pressure Pump - 12V - 4 GPM - 40 PSI HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life. Available in configurations up to 6 GPM (23 LPM) and 60 PSI (4.1 BAR), these pumps deliver exceptional performance.  Standard models provide good performance in an economical footprint. These configurations are available in 1-3 GPM, perfect for vessels with 1-3 outlets. A plastic housing protects the motors on these units from corrosion.  Features: * Co-molded diaphragm technology for long life and durability * HD models feature heavy duty, motors and cast aluminum lower housings which allow for longlife, even at high pressures * Efficient and quiet operation * Integrated, sealed pressure switch for on-demand operation * Self-priming allows for installation versatility * Can run dry without damage * Quick connect ports for ease of installation, servicing, and maintenance * Vibration dampening mounting feet * Equipped with integrated bypass module to reduce cycling and provide smoother flow Specifications: * Motor design: Brushed, permanent magnet TENV  * Pumphead upper housing material: Glass fiber reinforced polypropylene  * Diaphragm: Co-molded TPV  * Check valves: EPDM  * Max inlet pressure: 30 PSI (2.1 Bar)  * Fluid temperature range: 32°F – 140°F (0°C – 60°C)  * Dry self-priming capability: 7ft min (2.13m/min)  * Certifications: CE, ISO8846, RCM * Ingress Protection: IPX6 Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].