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Harbor Freight Stores: Greenwood 4 Gallon Backpack Chemical Expired

$20
$29.99
+49 Deal Score
61,555 Views
Harbor Freight has Greenwood 4 Gallon Backpack Chemical on sale for $19.99. Shipping is $6.99 otherwise this item is available for purchase In-Store (store locator).

Thanks to community member Aogen for posting this deal.
  • Note: Availability for in-store purchase may vary by location.
Features:
  • Polyethylene tank construction
  • Translucent tank makes it easy to monitor liquid levels
  • 4 gallon tank capacity
  • 12 PSI max pressure
  • 66" hose length
  • Overflow top and integrated filter
  • Chemical resistant seals
  • Accessories Included: 4 spray heads, spray wand and nylon carrying straps
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Visit Harbor Freight

Original Post

Written by
Edited May 15, 2021 at 08:53 PM by
HF has their backpack sprayer on sale. Normal price $30, typically $20 before they phased out coupons. Now you gotta wait for sales to buy at coupon price so... Here it is.

I use mine to spray Bifen to kill mosquitos.

https://www.harborfreight.com/4-g...63092.html
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$20
$29.99
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reviews are pretty bad
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cannot return either
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Leaks after a few uses. End up with puddles of toxic chemicals on the garage floor. You get what you pay for.
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Joined Jun 2019
L2: Beginner
> bubble2 78 Posts
26 Reputation
SudipRehana
05-16-2021 at 05:22 PM.
05-16-2021 at 05:22 PM.
Quote from trza :
Depending on how much you need to spray, the Ryobi 18v is decent. I mix up a gallon or two per spray and since there is no need to pump it goes pretty fast.

I 2nd that - expensive but worth every penny
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Joined Nov 2012
L5: Journeyman
> bubble2 712 Posts
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ManImCool
05-16-2021 at 06:44 PM.
05-16-2021 at 06:44 PM.
Quote from Aogen :
I use mine to spray Bifen to kill mosquitos.
Quote from Rawimpact :
But I recommend bifen 7.9 from Amazon to anyone who has insect issues
Quote from djsvetljo :
How is the Bifen working? Have you compared it to Talstar?
I'd like to hear more about this too. My only use case is for spraying Talstar to control mosquitos in my yard. Curious if Bifen is any better.


As an aside, I've been spraying the Talstar successfully with this HF unit for the past 2 years without issue; it only broke due to the recent Great Texas Freeze. But I agree I hate the straps; it's had a nice run but I'm ready to pay a little more for something better.
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Joined Mar 2016
L2: Beginner
> bubble2 54 Posts
18 Reputation
dodgem21
05-16-2021 at 06:57 PM.
05-16-2021 at 06:57 PM.
Quote from hockeyfan4u :
What other sprayer do you recommend?

Any commercial type backpack will be fine, $100 range usually suffices.
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Joined May 2014
L2: Beginner
> bubble2 37 Posts
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eblank86
05-16-2021 at 07:18 PM.
05-16-2021 at 07:18 PM.
I've had this sprayer for a couple of years now and it works fine. I got mine when they were $20 too and I can't complain for that price. I had to use plumbers tape on all the connections to keep it from leaking but other than than it's been good. I use it about once a month during spring/summer.
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Joined Jan 2011
L2: Beginner
> bubble2 43 Posts
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jschway
05-16-2021 at 07:19 PM.
05-16-2021 at 07:19 PM.
Had one for 5 years. Bought a much more expensive sprayer to replace it... Can't really tell the difference...
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Joined Aug 2012
L2: Beginner
> bubble2 51 Posts
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seanote
05-16-2021 at 07:40 PM.
05-16-2021 at 07:40 PM.
Quote from BaseShip :
If you have a yard with access to a hose, this is way faster to spray chemical if you got a big yard Hose attachement [homedepot.com]

If this would work for pesticide and other lawn treatments I would rather go this route.

Are there chemicals that this attachment can't do?
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Joined Jul 2009
L7: Teacher
> bubble2 2,882 Posts
65 Reputation
BaseShip
05-16-2021 at 07:47 PM.
05-16-2021 at 07:47 PM.
Quote from seanote :
If this would work for pesticide and other lawn treatments I would rather go this route.

Are there chemicals that this attachment can't do?
I don't see why not? As long as it is liquid. Basically, pour whatever pesticide or chemical you use into the plastic container hanging on bottom. Then adjust the setting wheel (I watched manufacturer video to find the correct setting), and spray. If you got left over, just pour the entire container back into whatever bottle it originally came from. That is about it.
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Joined Oct 2004
L5: Journeyman
> bubble2 793 Posts
150 Reputation
ugabulldog
05-16-2021 at 07:53 PM.
05-16-2021 at 07:53 PM.
Battery Powered Backpack Sprayer, KIMO 3 Gallon Garden Sprayer w/ 2.0Ah Battery for Long Time Spray, 2 Extended Wands, No Manual Pumping Required Electric Sprayer for Weeding, Spraying, Cleaning https://www.amazon.com/dp/B089SR3...UTF8&psc=1

I bought this one. Will test it out
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Joined Jun 2013
L3: Novice
> bubble2 181 Posts
37 Reputation
litotiger
05-16-2021 at 09:32 PM.
05-16-2021 at 09:32 PM.
Junk. Leaks after one use.
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Joined Nov 2014
L4: Apprentice
> bubble2 435 Posts
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SamW5482
05-16-2021 at 11:57 PM.
05-16-2021 at 11:57 PM.
Quote from ugabulldog :
Battery Powered Backpack Sprayer, KIMO 3 Gallon Garden Sprayer w/ 2.0Ah Battery for Long Time Spray, 2 Extended Wands, No Manual Pumping Required Electric Sprayer for Weeding, Spraying, Cleaning https://www.amazon.com/dp/B089SR3...UTF8&psc=1

I bought this one. Will test it out

Can you also buy this one for $20 and share your differences on how this one and $170 version you bought on Amazon? Thanks a bunch
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Joined Aug 2007
L3: Novice
> bubble2 254 Posts
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TDBURN
05-17-2021 at 07:04 AM.
05-17-2021 at 07:04 AM.
My last Harbor freight sprayer blew up on me when the seal broke while I was pressurizing it. Won't touch those again
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Joined Nov 2013
L5: Journeyman
> bubble2 544 Posts
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apostlej2015
05-17-2021 at 12:43 PM.
05-17-2021 at 12:43 PM.
My fart has better psi than this. Thing is horrible. Just bought a my4sons sprayer and will be putting this plastic hunk in the recyle bin
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Joined Aug 2015
L3: Novice
> bubble2 104 Posts
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Acid409
05-17-2021 at 08:30 PM.
05-17-2021 at 08:30 PM.
Quote from BaseShip :
If you have a yard with access to a hose, this is way faster to spray chemical if you got a big yard Hose attachement [homedepot.com]

I have a foam attachment for my pressure washer? Think that would work? Genuinely curious lol
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Joined Jul 2016
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> bubble2 5 Posts
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KreteSLC
05-17-2021 at 08:55 PM.
05-17-2021 at 08:55 PM.
Used it once and it broke and unable to returned. Like many others, shoulder strap broke and wand handle leaks.

Save your money and look elsewhere.
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Joined Oct 2012
L6: Expert
> bubble2 1,088 Posts
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jetcityjef
05-17-2021 at 09:07 PM.
05-17-2021 at 09:07 PM.
Quote from davidrmj13 :
I bought one last year. It leaked new because of pinched O-rings, but it did come with extras. I used it for watering plants I couldn't get a hose to until they established. I am overall happy with the price for my use, but I wouldn't want to use it for chemicals.

H2O (along with everything else) = chemical.




Just giving you a hard time.
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