Lippert Flow Max 689052 RV Water Pump 12 Volt – 3.0 GPM, 50 PSI Fresh Water Pump

Get fresh water in your RV when you want it, where you want it. The Lippert Flow Max 689052 12-volt RV water pump delivers strong, consistent water pressure with an average 50 PSI and 3.0 gallons per minute (GPM) flow rate — ideal for larger RVs with extended plumbing runs.

Built with a heavy-duty, corrosion-resistant motor and dry-run protection, this diaphragm-style pump provides reliable, on-demand water flow for RVs, campers, and marine applications.

Performance Specifications

• Voltage: 12V DC
• Flow Rate: 3.0 GPM
• Pressure: 50 PSI
• Pump Type: Diaphragm-style
• Certification: NSF/ANSI 372 (Lead-Free & Safe for Drinking Water)
• Warranty: 2-Year Limited Warranty

High-Pressure, High-Flow Performance

The Flow Max delivers:

• ? Strong 3.0 GPM water flow
• ? Consistent 50 PSI pressure
• ? Ideal performance for larger RVs and long plumbing runs
• ? Reliable operation for multiple fixtures running at once

Independently tested by Progressive Engineering, Inc. (Goshen, Indiana), the Flow Max outperformed the SHURflo Revolution 4008 in flow rate, pressure, and freeze/thaw durability.

Direct Replacement for Popular RV Water Pumps

The Lippert Flow Max 689052 works as a direct replacement for many common 12V RV water pumps, including:

• SHURflo 4008-101-A65 / 4008-101-E65 (Revolution 4008 series)
• SHURflo 2088-403-444 / 2088-422-144 / 2088-422-174 / 2088-422-444
• Lippert DS-01233-M (Grand Design OEM)
• Most 12V diaphragm pumps using standard ½" threaded ports

Note: Mounting hole locations may vary. New mounting holes may be required.

How the Flow Max Works

The Flow Max uses a self-priming diaphragm design:

• Self-Priming: Up to 6 ft vertical lift and 30 ft horizontal
• On-Demand Operation: Turns on when faucet opens, shuts off when closed
• Built-In Pressure Switch: Automatically shuts off around 50 PSI
• Check Valve: Prevents backflow contamination
• Thermal Breaker: Protects motor from overheating
• Dry-Run Safe: Won’t be damaged if tank runs empty
• No manual priming required.

Key Features & Benefits

• Heavy-duty corrosion-resistant motor with ball bearings
• Quiet operation for peaceful camping
• Screen filter included (installs on inlet side)
• Freeze/thaw tested housing (when properly winterized)
• Safe for potable water systems (NSF/ANSI 372 certified)
• Designed for intermittent, on-demand use

Important Usage Information

The Flow Max is designed for intermittent operation only (standard for RV water pumps).

Recommended duty cycle:
5 minutes ON / 10 minutes OFF under normal use.

Continuous high-pressure operation may shorten pump life.

Installation Details

• Port Size: Standard ½" threaded RV plumbing
• Wiring: 2-wire connection (12V positive & ground)
• Fuse: 15 amp fuse or breaker recommended
• Mounting: Secure to solid surface (new holes may be required)
• Filter Placement: Install included screen filter on INLET side

Dimensions

• Approximate Size: 8" L × 5.25" W × 5" H
• Weight: Approximately 5 lbs

Always compare dimensions with your existing pump before ordering.

Why Upgrade to the Lippert Flow Max 689052?

If your current RV water pump has:

• Weak water pressure
• Slow priming
• Constant cycling
• Excessive noise
• Leaks or freeze damage

The Flow Max delivers stronger pressure, quieter operation, improved durability, and dry-run protection — making it a reliable upgrade for your RV fresh water system.