Compact SEAFLO Pressure 21‑Series 12V diaphragm pump with automatic on‑demand pressure switch — self‑priming, can run dry and suited for 1–2 fixtures on boats, caravans and RVs.

• 12 V DC
• Open flow 3.8–4.3 L/min (1.0–1.2 gpm)
• Shut‑off 2.4–4.8 bar (35–70 psi)
• Self‑priming; 1.2 m (4 ft) suction lift
• Max temp 60°C (140°F)
• EPDM valves; Santoprene diaphragm
• Ports 3/8" hose barb; optional O‑ring port
• Built‑in on‑demand pressure switch; supplies 1–2 fixtures; runs dry
• 18 AWG, 13" (33 cm) long leads

Quiet, compact design ideal for liquid transfer, circulation and dispensing — watch the product video.