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Flash MX2400 Water Blaster Electric 1800W

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Make dirt and grime disappear with the powerful and versatile Flash MX2400 Water Blaster.

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Product overview

Product overview

Make dirt and grime disappear with the powerful and versatile Flash MX2400 Water Blaster.

This water blaster will make short work of the tougher jobs around your home. The powerful 1800W aluminium induction motor means a max flow rate of 7.2l/min, so pathways, vehicles, boats, decks, patios, garages, fences, driveways and even medium sized houses will look like new again once the MX2400 has gone to work on them.

The integrated hose reel holds 5m of hose and makes set up and transporting super easy, while the adjustable nozzle means you always have the right pressure and spray pattern for the job at hand. For dealing with tougher, built up grime like brake dust on car wheels, there is a handy built in detergent tank, so you can really shift that dirt.

Over 50% more efficient that your regular garden hose, a water blaster is not only the fastest cleaning tool in your arsenal, it lets you clean more while using less water, which is kinder on the environment and on your wallet.

Experience the quality and power of a Flash water blaster and order yours today.

About Flash Exclusive to Trade Tested, the Flash range of power tools have been developed to excel at the jobs Kiwis need to do.

Premium parts and materials mean they will be working hard and looking good for years to come, while clever design touches and a wide range of accessories mean you’ll always have the right tool for the job.

• 1800W aluminium induction motor
• Adjustable spray nozzle
• Trigger lock-off for safety
• Built in detergent tank
• Integrated hose reel
• 2 Year Warranty

Max pressure: 2393psi
Working pressure: 1600psi
Maximum flow rate: 7.2L/min
Maximum inlet temperature: 50°C
Motor: Induction, 1800W, automatic overheat cut out
Pump: Aluminium
Voltage: 240V
Hose length: 5m
Power cord length: 5m
Weight: 20kg
Packaged Dimensions: 40.5cm x 38.5cm x 94cm


Can we help?

Our friendly and knowledgeable gurus are trained to answer all your questions as quickly as possible. So if there’s anything you need to know just give us a call during business hours, or send us an email any time.

0800 800 880
Customer questions

Questions and answers

0 votes
q: will the parts of a k2.350 fit this blaster who makes this blaster
a: This is our own brand, as far as we know they are not compatible.
By Trade Tested on March 26, 2020
1 vote
q: I have an old Karcher K2.21. Will my old parts fit this new one?
a: No, they are a different fitting.
By Trade Tested on December 11, 2018
0 votes
q: What is the warranty term for this item?
a: This has a 2 Year Warranty
By Trade Tested on November 15, 2019
0 votes
q: Do you have a flexible sewer jet hose that fits onto this unit to extend its reach? I want to blast out my blocked drain. Thanks.
a: No we don't have that option available.
By Trade Tested on October 7, 2019
-2 votes
q: Can you adjust the pressure and/or flow rate with this water blaster?
a: This has an adjustable nozzle, however pressure at the pump can not be adjusted.
By Trade Tested on March 24, 2019
Customer reviews

Customer reviews

Overall rating

4.3 out of 5 stars from 41 reviews
Woody Ashburton

Water blaster

16 days ago


Great little water blaster ran mine for 4 hrs solid spraying down my fence before painting and it never missed a beat very happy.

Cat Eastern Bay of Plenty

Flash Water Blaster

6 months ago


Great product. Worth every cent. Thank you Trade Tested!

Ian Wilson Christchurch

MX2400 Water Blaster

7 months ago


I've found this product to be better then expected coming in summer it has cleaned up the house , driveway and fences. easy to assemble 10min up and running.

Robbie Auckland

Flash Slide Compound Mitre Saw 255mm 1800W

8 months ago


Good all round performer. Best value for money.

Acer Corommandel

Great prouct

about 1 year ago


Very pleased with the results from using this blaster

Rhonda Waikato

Flash MX2400

about 1 year ago


This is a great machine. Works well and does everything we want it to do

James B Auckland

Good start

about 1 year ago


Hi - I bought one of these water blasters January 2018 - used a few times over the summer and it worked well - but its died now - so great product while it works but don't expect it to last too long :(

Pingers Timaru

Not what expected

over 2 years ago


not what expected a bit down on power but looks good

Sketch Whangarei

Flash MX2400

over 2 years ago


I have owned this water blaster for two and a half years and I have had problems with it from the outset.

JJ Manawatu

Good water blaster

over 2 years ago


Great water blaster

Caveman Northland

Machine is ok but attachments are mostly useless

over 2 years ago


The machine is ok to use - easy to setup and good pressure but the wands and deck cleaners are of middling to useless functionality - the deck/hard surface cleaner in particular has such a low pressure stream it barely washes away dust. The pressure wand is very fiddly to adjust the spray pattern with and I have not been able to get an even, wider spray pattern set for washing cars - so end up with lines and stripes every time used. In my opinion spend the little bit extra and get a Karcher.

Lee Otago

Well made, great value.

over 2 years ago


Reliable, well built and with enough pressure for anything the average homeowner would need to do. Two minor quibbles: - The spray pattern adjustment ring at the end of the nozzle sits right next to the high/low pressure adjustment ring. When trying to adjust the spray pattern, it's quite easy to turn the pressure adjustment too by mistake. - The machine is quite top heavy. If you pull on the pressure hose it has a tendency to tip. If the water hose is not connected it can land directly on the hose attachment. When this happened to me, it broke off the included hose attachment. These are easily replaceable at any hardware store (it's one of those grey Gardena attachments you screw onto a garden tap). Overall very pleased!

Jonesontour Taupo

Flash Water blaster

over 2 years ago


Great product, best water blaster I have ever owned.... best in price range...

Pat Bay of Plenty

4 Stars for now

over 2 years ago


Got this a couple of weeks ago and it is a beast. Heavy, sturdy, and well built. What I appreciated was the way they designed all the connectors so that if something breaks, it's not going to be an arm and a leg to replace. Tried it on the driveway and yes, it powers thru moss and mold. Not a great fan pattern so still getting used to that. Be very careful with your car, especially the plastic bits like painted wheel splash guards. Paint comes off really quickly at full blast. Hope to use it in anger over the next couple of weeks so will add to the review.

Kimbo Wellington

Blast away!

over 2 years ago


A great little water blaster for around the home and with the attachments it's done an awesome job of cleaning down the decks,fences and the garage too, all in preparation for the summer painting jobs.. it's nice and light weight, easy to use and plenty of grunt!! Thanks tradetested.

Stewart Auckland


over 2 years ago


Good equipment. Work well.

Vinod Auckland


over 2 years ago


Very happy with the purchase. Does the job well.

Homehandy man Waikato

Badly underpowered , nozzle poor

over 2 years ago


I bought this because when I compared its specs to a Karcher brand, it was superior. Not the case. The nozzle attachment it came with is next to useless, either a direct tiny jet (which is about the only way it will clean concrete)or a extremely weak mist. I was only able to get a just acceptable pressure when I changed the nozzle for another brand. The hose kinks easy and is flimsy. I VERY much doubt the output pressure is what it say it is. I'm very disapointed.

G man Kapiti coast

Flash mx2400 water blaster

over 2 years ago


Easy to order and fast delivery, well packaged and easy assemble.seems robust and did s good job on my fence! Good power and nice pattern from lance.very happy with purchase and would highly recommend!

Simon_James Taranaki

Affordable and effective

over 2 years ago


I was in the market for a water blaster and the team at Trade Tested, were more than willing to help. I was quite thorough in my investigation into buying a water blaster, I checked out other shops before coming across Trade Tested online, What I found was quality products at an affordable price. This water blaster, at a humble price of $249 is so much better than anything around that price from retailers, who are selling much smaller and less powerful models for the same price. Overall, a great water blaster for most jobs around the house including walls, pathways and your cars if your brave enough( it’s powerful) Also, a 2 year warranty ensures peace of mind. I also like Trade Tested hassel-free warranty repair process( I asked the customer service representative) Trade Tested will find a local repair shop in your area and have it assessed there for your convenience. 10/10

Mitch Wellington

Good around the house

over 3 years ago


Good little water blaster suitable for use round the house, including cleaning cars. Easy to use

Adrienne Wellington

Flash mx2400

over 3 years ago


Works well

Micky Auckland


over 3 years ago


I haven't used it much but I like it

Rob Taranaki

Flash Water Blaster

over 3 years ago


Great waterblaster, powerful and operates smooth as at a great price. Cheers

Gaza wairarapa

water blaster

over 3 years ago


Top blaster, the wheels make for easy maneuverability. good purchase

Chris Freeman Christchurch

Great value waterblaster

over 3 years ago


I have used my new waterblaster a few times since purchasing it recently and have found it to be a great machine, powerfull enough to clean the moss off my concrete drive no problem at all and bringing it up like new.

Skiwijo Auckland

Great Waterblaster

over 3 years ago


I purchased the Flash waterblaster for use around my home - cleaning paths etc. I've used it once and it worked really well. Got all the grime off the concrete with ease. Great product.

Shaun Taranaki

Flash MX2400 Water Blaster

over 3 years ago


A great little water blaster and so quiet with awesome pressure

John Canterbury

Flash MX2400 Water Blaster

over 3 years ago


I have only used the water blaster twice since I purchased it but it performed above my expectations and much better than the previous model I owned.

Ants Lower Hutt

Cracking Machine

over 4 years ago


I've recently bought this water blaster and have really put it to the test around my household exterior. Delighted with the results and would thoroughly recommend to anyone thinking of purchasing.

GR Wellington


over 4 years ago


I bought this product about a month ago after researching about waterblasters and shopping around, I believe this is the best product at the best price from a very reliable company and so it has been proved correct ,

M &A TeWhata Auckland


over 4 years ago


Sorry havent used it yet but service was great. Bought for when we head back up north to retire later this year

Woodsie Wellington

Lot of pressure and well priced

over 4 years ago


Very pleased with the water blaster I purchased from Trade Tested goes well looks great and all for a good price.Dealing with Trade Tested was a breeze. The unit was delivered the next day. Happy As

Woodsie Wellington

Lot of pressure and well priced

over 4 years ago


Very pleased with the water blaster I purchased from Trade Tested goes well looks great and all for a good price.Dealing with Trade Tested was a breeze. The unit was delivered the next day. Happy As

Wendy Wellington

Easy to Use

over 4 years ago


Great Buy. Great for cleaning down the house prior to repainting and cleaning the concrete pavers.

Pfeif west coast

good product

over 4 years ago


I have owned for 6 weeks now & only problem has been the wand came with a damaged thread but with a bit of a clean up with a thread file it now fits great.

Chappy Whangamata

Great bit of kit

over 4 years ago


Does everything expected of it and the high pressure hose roller is a welcome feature - stores neatly away when finished.

Dutchy National Park Village

Water Blaster

over 4 years ago


I needed a workhorse and this unit is fantastic. Blows away years of grunge with the sweep of a wand.

Ron Wellington

Very useful product

over 4 years ago


Product performs according to expectations

Argo. Franklin.

exceptional price.

over 4 years ago


Found the 2400psi pressure great for those round the house jobs. Just right for concrete paths and adjustable pressure for paint work.

Murf Otago

Portable and powerful

over 4 years ago


This a no-nonsense, simple to operate, effective water blaster with enough power to do most basic cleaning jobs efficiently without hassles. It comes with only the adjustable wand, which is a pity, but other attachments can be bought.

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