SEAFLO 33 Series DC Diaphragm Pump – 12V, 3.0 GPM, 45 PSI (Model SFDP1-030-045-33)
Keep your RV’s water system running strong with the SEAFLO 33 Series 12V Diaphragm Pump, a reliable and efficient solution for pressurized water delivery wherever the road takes you.
Designed for long-lasting performance, this self-priming pump delivers a steady 3.0 gallons per minute at 45 PSI, making it ideal for onboard freshwater systems in RVs, campers, travel trailers, and boats.
Key Features:
- 12 Volt DC Operation – Built for mobile and off-grid water systems
- 3.0 GPM Flow Rate – Smooth, quiet water flow for showers, sinks, and more
- 45 PSI Pressure Setting – Pre-set for consistent performance without cycling
- Self-Priming Up to 6 Feet – Easily handles dry starts and elevation changes
- Run-Dry Protection – Prevents damage when the tank runs low
- Built-In Pressure Switch – Automatically turns pump on/off as needed
- Durable Construction – Corrosion-resistant materials built for RV environments
- Thermally Protected Motor – Prevents overheating for added safety and longevity
Whether you’re upgrading a worn-out pump or building a new system, the SEAFLO 33 Series is a dependable, easy-to-install choice trusted by RVers and boaters alike.
Compatible with most standard RV plumbing setups.
Specs at a Glance:
- Voltage: 12V DC
- Flow Rate: 3.0 GPM
- Max Pressure: 45 PSI
- Ports: 1/2” NPT
- Dimensions: Compact footprint for tight spaces
Keep your water flowing strong—order your SEAFLO 33 Series pump today from RV Parts Country, where we keep your travels smooth and your systems reliable.
Before You Order
Check 12V DC supply, 1/2-inch NPT ports, pressure and plumbing compatibility. Listing descriptions of protection and compatibility should be verified for the intended system.
Frequently Asked Questions
What are the listed flow and pressure ratings?
The product listing specifies 3.0 GPM flow and 45 PSI maximum pressure.












