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Backpack Sprayer 16L

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Take your spraying to the next level, and get your hands on one of these great 16L backpack sprayers.

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Product overview

Product overview

Take your spraying to the next level, and get your hands on one of these great 16L backpack sprayers. Whether you’re knocking off those pesky weeds and insects around your lifestyle block, doing some foliar fertilising for a commercial garden or even just cleaning your deck, this top quality sprayer is an excellent investment.

Made from heavy-duty polypropylene, this sprayer will last you years of hard work. Fitted with a quality nozzle, the wand is telescopic for maximum reach. The relief valve allows safe refilling, and the Viton seals are designed to withstand most common corrosive chemicals.

It comes with straps to easily carry it on your back, so you can get a full tank around without any trouble. Throw away that old sprayer and pick the one that’s built for the job - order yours today.

• Heavy duty tank
• Durable telescopic composite wand / lance with adjustable nozzle
• Wide mouth
• Replaceable Viton seals
• Diaphragm pump
• Pressure relief valve
• Filters included
• 1 Year warranty

Capacity: 16L
Tank material: Polypropylene
Wand material: Aluminium/fibreglass
Nozzle material: Polypropylene
Maximum pressure: 29-36psi (2.0-2.5 bar)
Spraying radius: 1.5-2m
Wand length (including handle): 118cm
Wand diameter: 10mm
Tube length: 144cm
Tube diameter: 10.8mm
Overall dimensions: 38cm x 17cm x 54cm
Weight: 3.4kg

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: What is the best way to store the knapsack when not in use for long periods? I have found the "O" rings tend to dry out.
a: Clean it out using warm soapy water (although check the recommended cleaning procedure for whatever you were using in there) and store in a cool dry place out of sunlight. The rings are really consumables, which is why we sell a replacement kit. There are various supposed tricks you can find online, but if you're storing for long enough that the seals dry out, then you may as well re-commission properly.
By Trade Tested on
0 votes
q: How far will it spray horizontally and vertically (for fruit trees?). Can the 75cm extension be added to the supplied lance for extra reach?
a: The spraying radius is 1.5-2m. The extension is not designed to fit this model, it fits our stainless steel models.
By Trade Tested on
0 votes
q: Hi, Can you set the pressure on this sprayer to a set pressure that will stay throughout activity? or does it lose pressure as it sprays? I need a very even application. Also is there a gauge on the sprayer to know what the pressure is set at? Thanks Julie
a: Any hand pump sprayer will lose pressure at it sprays, you will need to keep it pressurised. This model does not have a gauge, our stainless steel models do, so they would be a better option.
By Trade Tested on
Customer reviews

Customer reviews

Overall rating

4.4 out of 5 stars from 39 reviews
Davo Canterbury

great sprayer

about 1 month ago


happy with this product as large capacity allows easy coverage of large area. Easy to assemble & use. I recommend this product if looking for a sprayer.

Lou Lou Wellington

So easy to use

2 months ago


So after several failed sprayers over the last few years I googled 'Best Weed sprayer in NZ'. Up came this one. After reading all the good reviews, I gave it a go and I haven't been disappointed. Really easy to use and pump and it only takes a few pumps rather than hundreds! My only comment is that it only came with assembly instructions, not usage instructions (but easy enough to figure out how to use). Great product, great price.

James B Auckland

Great Product

3 months ago


Works really well that we bought two of them !!

Wookie Auckland

An effective product

3 months ago


A great sprayer and holds a sizable amount of liquid! Be careful when completely full as it is quite heavy to put on. The unit is reasonably straight forward to assemble, and easy to operate. It maintains a good seal and doesn't leak at all - which is excellent!

Sparkey Waikato

Great Sprayer

4 months ago


Backpack sprayer was everything I hoped it would be without the high price tag. I can only carry 10L at a time which is fine and it stopped working when I first used it but this was due to human error as I had pumped handle too many times. Very happy with purchase

Spacey Auckland

Back pack sprayer.

5 months ago


Excellent - easy to assemble , light weight works well - did whole property in one hit!

David Tauranga

Heavy but handy!

6 months ago


I knew this would be awkward to put on my back but once there it is a massive bonus not to have to stop spraying to refill like some of the smaller sprayers. As ever, very good value!

Aunty Micky Howick

Great 16L Backpack Sprayer

6 months ago


Worked really well & did what it said on the box! Great value for money.

Mark New Plymouth


11 months ago


Easy to assemble without instructions. The spray nozzle gives a good spread. The empty container is light so when full it isn't too heavy

N/a n/a

backpack sprayer 16l

about 1 year ago


sbackpack sprayer works very well , it could however do with a nozzle that can adjust from a fine spray to a jet spray

Fraser Waikato

Good value

about 1 year ago


Works well but shoulder straps are difficult to get on easily and are not very comfortable. Hose is very light and tangles easily. Overall quite good value for the money.

SteffNZ North Otago

Great Product

about 1 year ago


After researching the net for an affordable reliable backpack sprayer I decided for the first time to buy a product from Trade Tested - and I am not disappointed! It is exactly the right product I was after and works a breeze for several times now. Bought another product and the same result - a working product for an absolute fair price.

Derek Waikato

Trade Tested went the extra mile for me

about 1 year ago



Steve Otago

Backpack Sprayer 16L

about 1 year ago


Easy to assemble and operate. Well priced. It would be easier to carry, lift etc if it had a handle but overall good value for money. Brilliant service from Trade Tested team.

Myke Auckland

Happy chappy - backpack sprayer good

about 1 year ago


A nice challenge assembling sprayer with instructions provided. Have used twice so far - and love the ease with which a good spray area/zone can be achieved. Good pump mechanism. Hose length adequate and effective.

Pete Whangarei

!6 ltr. Back Spray

about 1 year ago


Very pleased with this purchase.realy very simple to assemble.Very economic to use with its double rose head spray.Very fast delivery. Love trading with you Tradetested.

Big bri kaikoura


about 1 year ago


Great spay should have got one years ago I can do all of my property in one go and it is real easy to use.

Gilky Wanganui

Back pack sprayer

about 1 year ago


Great back pack sprayer . Well made and does the job it's intended for. Paid alot more for sprayers that art as good :-)

Gene Waikato

Back pack sprayer

about 1 year ago


Great product , works well as intended ,

Jon North Shore

16 Lt backpack Sprayer

about 1 year ago


Very nice product. Easy to assemble and efficient and comfortable to use.

Trial and Error Lower Hutt

Backpack Sprayer 16L

about 1 year ago


Reasonably easy to assemble. Pump lever caused a few issues withscrew-cap of tank, but managed to work out why that was happening.

Lorenzo Whanganui

4 stars.

about 1 year ago


A sound machine that is fit for purpose. Easy to use and can access taller fruit trees.

Jim Timaru

Features to make life easy

over 2 years ago


Carrying the pack on your back makes spraying so much easier. Wand has a good extension so no bending required. 16Ltr capacity saves filling it every 5mins

Sterling Taranaki

Reasonable value for the money

over 2 years ago


Not my ultimate backpack sprayer, but represents value for the asking price ($50).

Kevin Christchurch

Backpack Sprayer 16L

over 2 years ago


Nice sprayer.Took a little assembly but all made sense.

Opal Canterbury

Great value

over 2 years ago


We like this unit, because it was simple to assemble, easy to operate and has a very good pump and spray action. Highly recommend.

Bryan Auckland


over 2 years ago


Awesome sprayer should have purchased one sooner

Shelly Wellington

Great use.

over 2 years ago


The sprayer is great when you finally get it together. There are no instructions and I found I needed some. Also bought one for a friend and they had the same problem.

Paddylass Auckland

Works well. Quite heavy when full.

over 2 years ago


It does what it says. Very handy when you don't have to do constant refills. Some instructions would have been helpful (found them later on the website). Straps are a bit uncomfortable. Happy with my buy!

Jase Bay of Plenty

Great sprayer

over 2 years ago


Great sprayer just be careful when purchasing as the nozzle does not adjust

Robynne Levin

16lt Backpack Sprayer

over 2 years ago


Really love this. Now busy spraying without all the previous back pain I got from using a spray bottle.

Reinsy Hamilton

Backpack Sprayer 16L

over 2 years ago


Works really well. Didn't leak at all once I had put all the washers in the right place. Has a really good fine spray which enabled me to spray my newly painted home, inside and out, for insects without leaving any drip marks

Mandy Whangarei

Best service

over 2 years ago


Thank you guys for providing such great services. I have never been disappointed yet in any of your products or service delivery which is always very prompt. I also have to say your prices are very competitive but would buy from you anyways because of the great services.

Sanam Wellington

16L Backpack Sprayer

17 days ago


It does the job but can be uncomfortable to use and requires near constant pumping.

Kevin Kaiwaka

Sprayer or sieve

2 months ago


Bought two of these a few months ago just set one up it leaked through the pump. No more liked poured. On investigation found one of the page seals at the top in the green cap was thoroughly perished and cracked, also the bottom o ring missing and not one sign of grease on any of the o rings. They might have been reduced when I bought them but it's still a waste of any amount of money if it doesn't work or you have to combine two to get one working.

David Kapiti coast

Very heavy

3 months ago


Be sure you can lift and carry 16kg before you order Over 70 but fit, but too much for me I will try it half full but somewhat defeats the purpose. Also struggling a bit trying to get the pump lever properly positioned.

Cols Wellington

Good price, functional.

4 months ago


A good functional sprayer, at a good price. It does what I wanted to achieve. Negatives, the straps could have been more comfortable and easier to put on, given the weight when the backpack sprayer is fully loaded. Also a plastics part which helps stabilize the pump, was broken on delivery. I didn’t bother to complain, as the sprayer worked ok without it.

Tracey Tauranga

Get what you pay for

11 months ago


It's average. Does the job. But attachments are cheap plastic and the pressure not great

Rob Wellington

Great value for the money

about 1 year ago


A waist band would be great but for $49 I'm just being picky.

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