wassermann 12V RV Water Pump — 4.0 GPM, 45 PSI Self-Priming Pump with Pressure Switch and Installation Kit

The WASSERMANN 12V RV Pump is a self-priming, automatic water pressure pump that delivers up to 4.0 GPM at a steady 45 PSI for reliable fresh-water flow in RVs, boats, and campers.

This compact, 12-volt DC pump is built for mobile life: it starts automatically when a faucet is opened and stops when pressure returns, runs from any 12V battery or RV cigarette lighter, and includes a full installation kit. The WASSERMANN model replaces common 2088-series pumps and focuses on durable, corrosion-resistant components and short dry-run tolerance so you can use it with confidence while traveling or boating.

How does this pump supply steady water in an RV or boat?

The pump uses a built-in pressure switch to maintain a consistent 45 PSI and a brushless-style motor design to generate up to 4.0 gallons per minute. When you open a tap the switch senses pressure drop and activates the motor; it then shuts the unit off automatically when the line repressurizes. This delivers predictable flow for showers, sinks, and on-board appliances without manual switching.

• Automatic pressure switch starts and stops pump based on demand
• 4.0 GPM flow supports common RV fixtures
• 45 PSI setpoint provides consistent water pressure
• Self-priming for quick start-up after dry periods

What power and installation options are available for the WASSERMANN pump?

The pump runs on 12V DC and can draw power directly from a vehicle battery or an RV cigarette-lighter socket, making it plug-and-play for many setups. The package includes hose adaptors, a male-thread adapter, and a debris filter to simplify plumbing connections and protect the unit. Mounting points are integrated for secure installation in cabins, bilges, or storage bays.

• Operates from any 12V DC battery or cigarette-lighter outlet
• Includes 1/2" barbed hose adapters and 1/2" male-thread adapter
• Comes with inline debris filter to prevent clogging
• Pre-drilled mounting flange for stable attachment

How durable is it for seasonal use and variable conditions?

The WASSERMANN pump features corrosion-resistant materials suitable for freshwater systems and designed to hold up under frequent starts and stops typical in mobile applications. It also supports short-term dry-run protection so brief air ingestion won’t immediately damage the unit, though avoiding extended dry operation is recommended. Routine maintenance like checking the inline filter will extend service life.

• Corrosion-resistant construction for long-term use
• Short-time dry-run tolerance protects motor during brief air intake
• Compact design withstands vibration in RVs and boats
• Replaceable debris filter included for easy upkeep

Which accessories and replacement scenarios should I plan for?

The kit ships with the essential installation parts so you can connect to common 1/2" RV plumbing right away, and the pump is a direct fit for many 2088-series replacements. Keep spare hose clamps and a backup filter on hand if you travel frequently or store gear in cold climates where freezing can damage lines. For electrical reliability, verify 12V connections and fuse sizing during installation.

• Complete kit: pump, hose adapters, male-thread adapter, debris filter, manual
• Compatible as a replacement for many 2088-series RV pumps
• Recommended spare items: hose clamps, extra filter, inline fuse
• Check wiring and fuse before permanent installation

Who this is for: The WASSERMANN 12V RV Pump is designed for RV owners, liveaboard boaters, camper van builders, and weekend campers who need a reliable, self-priming fresh-water pump that fits standard 1/2" plumbing. It suits anyone replacing an older 2088-series pump or installing a compact, automatic pressure system where 12V power is available and consistent water flow is required.