Save up to 15% OFF on all Solar Panels. Shop Collection

Limited Time Spring Deals Shop Now

40% off

Rocksolar 0.4HP Solar Submersible Pump

Sale price $599.99 Regular price $999.99
Choos your pump : Maximum flow/Maximum Head
Questions or Bulk Orders?

Pickup available at USA Fulfillment Center

Usually ready in 24 hours

Talk to Real Experts Anytime

Lifetime tech support from our in-house specialists

Hassle Free Warranty

Effortless Warranty for Your Ease.

Unbeatable Value, Guaranteed

Find it cheaper elsewhere? We'll match it.

Over 25 year
solar industry experience
Trusted by
10,000+ American
customers
Hassle free 30
days return policy
Industry-Leading
Warranty

High Efficiency DC Brushless Motor

Ensure a long lasting and maintenance free service life

Warranty

5 Years

Description

ROCKSOLAR 0.4HP Solar DC Brushless Submersible Pump

What's included: Pump + MPPT controller, water intake mesh filter, installation tools, user manual, warranty card — panels not included

Key specs — all models:

  • Motor: 0.4HP DC brushless | Water-cooled | Permanent magnetic
  • Input: 20–48V DC | Solar: 400W+ recommended (or battery)
  • Material: SS304 stainless steel | Pump type: impeller (centrifugal)

Three models — choose by flow vs. depth priority:

Model A (3SPW1-5P) Model B (3SPW3-3P) Model D (4SPW8-1P)
Max flow 15.3 GPM 26.4 GPM 46.23 GPM
Max head 130.4 ft 74.98 ft 32.6 ft
Max pressure 58 PSI 32.5 PSI 14.1 PSI
Pump body 3" 3" 4"
Outlet 1.5" 1.5" 2"

Built for: Wells, cisterns, ponds, livestock watering, off-grid irrigation, remote cabins, agricultural applications

Key features:

  • Submersible design — drops directly into wells or cisterns, no priming required
  • SS304 stainless steel — corrosion-resistant, built for permanent submersion
  • Water-cooled motor — stays cool during extended operation without external components
  • MPPT controller — auto-adjusts to available sunlight, stops and restarts without manual intervention
  • Float switch / pressure switch compatible — automates fill and shutoff
  • Dry-run auto protection — shuts off if water supply is interrupted
  • Maintenance-free — no brushes to replace, sealed design

Warranty: 5 years

SPECIFICATIONS

Specification Details
Product Rocksolar 300W Brushless Solar Pump with In-Built Controller
Model Brushless Motor, In-Built Controller
Power 300W
Voltage 20-48V, Best at 24-40V
Solar Panel Requirement 440W*1 PCS
Max Head 131 Feet
Max Flow Rate 15.41GPM
Pump Diameter 3 inches
Pump Outlet 1.5 inches
GPM 15.32, 14, 12.68, 11.10, 8.72, 7.13, 5.28, 3.43, 0
Height (Ft) 0, 16.41, 32.81, 49.23, 65.62, 82.05, 98.43, 114.87, 40
Water Cooled Motor Yes
Warranty 1 Year

INCLUDES

Datasheet & User Manual

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Find Your Perfect Solar Solution

Answer a few questions to get personalized product recommendations

What is your primary use case?

Home & Cottage

Residential off-grid systems

RV, Camper & Cabin

Mobile and remote power

Commercial & Industrial

Large-scale operations

Marine & Camping

Boats and outdoor activities

Golf Carts

Golf cart batteries

Farming & Irrigation

Water pumps and systems

What is your daily energy consumption?

Additional requirements

Your Recommended Products

Your Requirements:
Use Case:
Daily Energy:
Peak Power:
Backup Duration:
Loading recommendations...


Notification Channels