Seaflo 21-Series
Score: 72/100
Sailingflo Diaphragm Pump
Score: 78/100Rankings
The Sailingflo FLO-2202 is a compact 12V DC diaphragm pump designed for intermittent use in caravans and marine applications. It features a 2-chamber design with dry-run protection and an adjustable pressure switch. While its low flow rate limits high-demand use, its compact size and safety features make it ideal for light-duty freshwater systems.
The Seaflo 21 Series is a compact 12V DC diaphragm pump designed for on-demand water pressure in mobile applications like RVs and boats, delivering 1.2 GPM at 35 PSI. It features self-priming capabilities and a built-in pressure switch for automatic operation. It is best suited for RV and caravan owners needing portable water pressure for 1-2 fixtures where battery efficiency is critical.
| Attribute | | |
|---|---|---|
1.2 GPMbest | 1.1 GPM | |
35 PSI | 55 PSIbest | |
4 ftbest | 4 ftbest | |
12 Vbest | 12 Vbest | |
0.4 HPbest | — | |
4 Abest | 3 A | |
140 °Fbest | 140 °Fbest | |
| ↓ lower better | 1.25 lbsbest | 1.5 lbs |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Power(4) | ||
Flow Rate (GPM) | 1.2 GPM | 1.1 GPM |
Max Pressure (PSI) | 35 PSI | 55 PSI |
Horsepower (HP) | 0.4 HP | null HP |
Max Amperage (A) | 4.0 A | 3.0 A |
Features & Protection(1) | ||
Warranty Length (months) | N/A months | null months |
Build & Durability(4) | ||
Weight (lbs) | 1.25 lbs | 1.5 lbs |
Noise Level (dB) | Low dB | low dB |
Diaphragm Material | Santoprene | null |
Valve Material | EPDM | null |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors highlight the Seaflo 21 Series as a professional-grade solution for marine and RV applications, praising its efficient low current draw and high capacity output.
Everyday users commonly praise the pump for its strong initial flow and ease of setup. However, recurring complaints include priming issues if not level, increased noise under high demand, and reduced lifespan when used with dirty water.
