SEAFLO 55 Series Automatic Demand Diaphragm Pump — 115V AC, 5.0 GPM, 60 PSI, 5-Chamber, NSF/UL Certified, 4-Year Warranty

Overview

The SEAFLO 55 Series Automatic Demand Diaphragm Pump is engineered for reliable freshwater delivery in marine and RV setups. With a 5-chamber diaphragm design, it delivers up to 5.0 GPM at a 60 PSI shut-off, supporting multiple fixtures while maintaining steady pressure. Its self-priming capability reaches up to 6 ft, and it tolerates brief dry-running, allowing flexible installation relative to water tanks.

Key performance specs

• Open Flow: 5.0 GPM (18.9 LPM)
• Shut-off Pressure: 60 PSI
• Self-Priming: Up to 6 ft (1.8 m)
• Ports: 1/2"-14 MNPT
• Max Temp: 140°F (60°C)
• Weight: 6.08 lbs
• Warranty: 4 Years

Design and reliability

• 5-Chamber Diaphragm delivers robust flow for larger freshwater layouts
• Integrated bypass helps prevent rapid cycling and stabilizes outlet pressure
• Run-dry safe and self-priming up to 6 ft
• Ultra-quiet, low-vibration operation for comfortable cabins
• Corrosion-resistant materials withstand saltwater exposure and extend motor life
• Supports up to four fixtures at once without compromising pressure
• Smart on-demand pressure switch activates when water is used and stops at target pressure

Certifications and usage

Certified for RV potable water safety and compliant with NSF/UL CSA standards, the pump is suited for marine environments and everyday use. It is designed to plug into standard outlets for straightforward installation.

Real-world scenarios include supplying water to sinks, showers, toilets, and spray guns in RVs or boats, with consistent flow and manageable noise levels even during extended operation.