Seaflo 21-Series 12 V Diaphragm Water Pressure Pump – 3.8 LPM (40 PSI), Auto Demand

Upgrade your caravan’s water system with the Seaflo 21-Series Diaphragm Pump. This compact, auto-demand pump delivers up to 3.8 LPM (1 GPM) at 40 PSI, features dry-run safety, a built-in pressure switch, and robust construction—ideal for reliable, low-maintenance freshwater delivery.

Key Features & Specifications:

• Self-Priming & Dry-Run Safe: Automatically primes and shuts off when taps close—safe even when dry. 

• Compact Yet Capable: Delivers up to 3.8 LPM (1.0 GPM), reliably serving 1–2 fixtures with adjustable pressure. 

• Integrated Pressure Switch: Starts and stops automatically as taps open and close, ensuring easy operation. 

• Durable Build for Travelling: Features Santoprene diaphragm, EPDM/Valve seals, and nylon/polypropylene housing—built tough for harsh conditions. 

• Easy to Mount & Wire: Standard mounting pattern with 18 AWG 13″ leads; includes hose barb compatible with 3/8″ or 1/2″ hoses. 

• Ideal for RV & Marine Use: Widely used in caravans, boats, and RVs with up to a 3-year warranty in Australia.