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A-iPower PWF4200SH - 4200 PSI 4 GPM 420cc Gas Pressure Washer

The A-iPower PWF4200SH is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 4 GPM. (Read full specs)

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Features and Specifications

FuelGas-Powered
HandlingWheelbarrow
WaterCold
PSI4200
GPM4
Cleaning Units16800
Engine420cc 13 HP Senci SC420 OHV 4-stroke
PumpAnnovi Reverberi Triplex
Pump materialBrass
FrameSteel
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft
Hose storageHooks
Dimensions
(L x W x H)
Approx. 39.3 x 26 x 25.5 in
Weight132 lbs
Pressure controlValve
Wheels2 wheels, ⌀12", never flat
Included accessoriesOil, funnel, tool kit, nozzle cleaner, wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityLow oil and trigger lock
EmissionsCARB, EPA
Warranty2 years
UPC850013862306

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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Description

The PWF4200SH delivers 4200 PSI and 4 GPM for maximum surface cleaning power. Perfect for removing dirt and grime while restoring decks, sidewalks, siding, patios, porches, driveways, and vehicles. (source: A-iPower (opens in a new tab))

Zoom on the A-iPower PWF4200SH

In a nutshell, the A-iPower PWF4200SH is a heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:

  • spot cleaning of hard, paintless surfaces and reaching far-away areas
  • thorough cleaning of hard, paint-free surfaces
  • cleaning of painted and fragile surfaces
  • use of detergent and cleaning solutions

The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.

Power

The A-iPower PWF4200SH in use

The A-iPower PWF4200SH

Powered by an impressive 420cc (13 hp) engine, its brass triplex pump can deliver a pressure of 4200 PSI (around 70 times more than a standard garden hose) and a flow of up to 4 GPM (values claimed by the manufacturer). Combined, these values mean that the A-iPower PWF4200SH has a cleaning power of 16800 Cleaning Units.

A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Senci SC420 engine.

A fuel tank with a maximum capacity of 1.7 gallon is used to store gasoline.

Design & Handling

The wheelbarrow design of the A-iPower PWF4200SH grants mobility and stability to the unit. The robust and sturdy steel frame offers longevity to the assembly. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.

With a weight of 132 lbs, the model is not lightweight. Therefore, it may be challenging to manually carry it around and transport it. A key role in its final weight is played by its 420cc Senci SC420 engine, the triplex pump and steel frame. However, the unit is mobile thanks to its two 12" never-flat wheels, which add to its movability and allow it to be manipulated smoothly on the job.

Main Features

The A-iPower PWF4200SH's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.

  • Soap injection: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. The detergent is automatically added to the water when a soap nozzle is connected.
  • Pressure hose: The included 50 ft high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
  • Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
  • Nozzles: The 5 nozzles included with the device, and the respective surfaces which they’re the most suitable for, are shown in the following table.


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionUse with cautionSuitable

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

The nozzles of the A-iPower PWF4200SH

The A-iPower PWF4200SH nozzles

  • Onboard storage: The A-iPower PWF4200SH allows you to be always fully prepared, as it features a handy storage area, where nozzles and accessories can be stored.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation) and a low oil protection.
  • Accessories: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the A-iPower PWF4200SH also comes with tool kit, funnel, pressure hose, oil, soap hose, nozzle cleaner, wand and spray gun.
  • Emissions: The A-iPower PWF4200SH is EPA-approved and CARB-compliant. Therefore, the sale and purchase of this pressure washer is permitted in all of the 50 states, including California.

The A-iPower PWF4200SH's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the A-iPower PWF4200SH compare to similarly priced pressure washers.

  • The A-iPower PWF4200SH, with a max water pressure of 4200 PSI, has one of the highest PSI values of the gas-powered products in the $900-1000 price range.
  • The water flow of this washer, which reaches up to 4 GPM (gallons per minute) is one of the highest values found in the above-mentioned price range.
  • With a rather impressive value of 16800 Cleaning Units (PSI X GPM), the PWF4200SH has one of the highest cleaning efficiencies compared to similarly priced devices.

Price comparison

As you can see from these interactive charts, when compared to other gas-powered washers between 16500 and 17000 Cleaning Units, the A-iPower PWF4200SH is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget pressure washer.

The bottom line

STRENGTHS:
  • Inexpensive
  • Triplex pump
  • Designed to be stable
  • Good range of nozzles included
  • Onboard storage
  • Several security features
  • CARB-compliant
  • High PSI for the price
  • High GPM for the price
  • High CU for the price
WEAKNESSES:
  • No soap tank

Do you own the A-iPower PWF4200SH and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About A-iPower

A-iPower, which stands for American Innovation, is a subsidiary of SENCI Electric Mechanical Co. Ltd. Headquartered in Ontario, California, they have an engineering office in Charlotte, NC, and technical and distribution center in Milwaukee, WI. For almost 30 years, A-iPower has been dedicated to providing excellent customer service and product solutions for a wide range of consumer and commercial power generation equipment. They offer portable generators, pressure washers, gasoline engines, and water pumps for the professional trade and homeowners.

Warranty Information

The A-iPower PWF4200SH is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of A-iPower pressure washers, please contact the A-iPower Customer Support: 1-855-888-3598.

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