Compact SEAFLO 21‑Series 24V diaphragm pump delivering up to 4.3 L/min (1.2 GPM) with an automatic pressure switch for reliable on‑demand water supply.

• Open flow: 3.8–4.3 L/min (1.0–1.2 GPM)
• Shut‑off pressure: 35–70 PSI (2.4–4.8 bar)
• Priming: 1.2 m (4 ft) suction lift; self‑priming and can run dry
• Max recommended temperature: 60°C (140°F)
• Material: EPDM valves / Santoprene diaphragm
• Ports: 3/8" barb (or custom O‑ring)
• Electrical: 24V model with 18 AWG, 33 cm (13 in) leads; adjustable pressure setting
• Suitable for supplying 1–2 fixtures; compact, quiet and easy to install

Ideal for boats, caravans and RVs — see related Marine Pumps.