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Chapin 61800 4-Gallon Made in USA Professional Backpack Sprayer with Brass Adjustable and Poly Fan/Cone Nozzles, Cushion Grip Shut-Off, 3-Stage Filtration System, Translucent White

4.4 4.4 out of 5 stars 1,758 ratings
$85.49
FREE Returns
Sprayer
Backpack Sprayer W/Adjustable and Fan Nozzle
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Purchase options and add-ons

Brand Chapin International
Tank Volume 4 Gallons
Color Translucent White
Recommended Uses For Product Pest Control, Watering, Weed Control
Material Brass, Reinforced PVC

About this item

  • 4-GALLON DURABLE POLY TANK: durable 4-gallon translucent poly tank lets you see the tank capacity while filling and working, tank is durable and compatible with standard lawn and garden chemicals; 5.25-inch opening with filter cap to help catch debris when filling tank
  • MADE IN THE USA WITH GLOBALM MATERIALS: designed and produced in the USA with US-based customer service and technical support, located at Chapin’s home base in Batavia, NY; backed by Chapin’s 2-year limited warranty
  • COMPONENTS: adjustable padded shoulder straps, 20-inch poly extension wand and 48-inch reinforced hose, poly, cushioned grip, shut-off with lock-on feature
  • THREE SPRAY NOZZLES INCLUDED: dial your spray from coarse stream to shower with either the brass or poly nozzles, spray a fan with the poly fan tip spray nozzle
  • CHEMICAL COMPATIBILITY: chemical-resistant elastomer seals handle professional fertilizers, pest and weed control products or general cleaning solutions
  • TECHNICAL SUPPORT: always check your manual for proper use and assembly. Our technical support team can answer any questions (1-800-444-3140)

Customer ratings by feature

Easy to assemble
4.1 4.1
Easy to use
3.9 3.9
Sheerness
3.8 3.8
Value for money
3.5 3.5
See all reviews
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From the manufacturer

Chapin, 61800, Chapin 61800, 61800 Backpack Sprayer, Backpack Sprayer, 61800 Pro Backpack, Sprayer

61800 ProSeries Professional Backpack Sprayer

Strong enough for professionals and simple enough for your home

Fertilize, spray weed control, tackle pests, reach trees and larger bushes

Sprayer nozzles, Sprayer, Sprayer Handle, Sprayer Trigger, Chapin, Chapin Parts, Chapin Replace

shut-off handle, sprayer handle, backpack sprayer, chapin sprayer, lawn and home care, gardening

sprayer filter, pump filter, cap, backpack sprayer, chapin sprayer, lawn and home care, gardening

backpack sprayer, applications, fertilizing, weed and pest control, outdoor sprayers
atv sprayer, lawn garden sprayers, farm & field, backpacks, handlheld, battery, pump sprayer

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Chapin

Chapin 61800 4-Gallon Made in USA Professional Backpack Sprayer with Brass Adjustable and Poly Fan/Cone Nozzles, Cushion Grip Shut-Off, 3-Stage Filtration System, Translucent White

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Product guides and documents

User Manual (PDF)

Product Description

Chapin's 61800 4-gallon professional backpack sprayer with positional pump handle allows you to comfortably control this unit whether you're left or right handed. It comes with chemical-resistant seals for harsher weed control, pest control or fertilizers. Multiple nozzles are included: adjustable brass, adjustable poly, and poly fan tip. Its chemical-resistant poly tank is rust resistant and translucent. The backpack comes with Chapin’s standard 3-stage filtration system. Backed by Chapin’s 2-year limited warranty and made in the USA with global materials.

Top Brand: Chapin International

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Chapin International Chapin 61800 4-Gallon Made in USA Professional Backpack Sprayer with Brass Adjustable and Poly Fan/Cone Nozzles, Cushion Grip Shut-Off, 3-Stage Filtration System, Translucent White
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Price$85.49$89.99$79.99$39.99$96.19$149.99
Delivery
Get it as soon as Wednesday, May 15
Get it as soon as Tuesday, May 21
Get it as soon as Tuesday, May 14
Get it as soon as Monday, May 13
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Customer Ratings
4.44.4 out of 5 stars1,758
4.14.1 out of 5 stars500
4.34.3 out of 5 stars419
4.24.2 out of 5 stars83
5.05.0 out of 5 stars7
4.44.4 out of 5 stars33
Easy to assemble
4.1
3.2
2.7
3.9
—
5.0
Easy to use
3.9
3.6
4.2
4.0
—
4.5
Value for money
3.5
3.5
4.0
3.6
—
4.4
Sold By
Amazon.com
Amazon.com
WOEKBON
Amazon.com
Amazon.com
Amazon.com
tank volume
4 gallons
—
4 gallons
4 gallons
4 gallons
4 gallons
hose length
48 inches
—
—
59.05 inches
48 inches
48 inches
power source
manual
Battery Powered
Battery Powered
Hand Powered
Manual
ac dc
material
Brass, Reinforced PVC
High Density Polyethylene (HDPE)
—
High Density Polyethylene (HDPE)
Plastic
Plastic
maximum pressure
60 pounds per square inch
—
—
—
60 pounds per square inch
60 pounds per square inch
number of items
1
—
—
1
1
1
style
Backpack Sprayer W/Adjustable and Fan Nozzle
4 Gal
Compact
1 Sprayer
Backpack
Backpack

Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,758 global ratings

Customers say

Customers like the value of the sprayer, saying it's a good investment for home lawn care. They are also satisfied with the performance and ease of use. However, some customers have reported issues with the straps, saying they suck and squeeze the heck out of you. Opinions are mixed on comfort, weight, quality, and leakage.

AI-generated from the text of customer reviews

189 customers mention171 positive18 negative

Customers are satisfied with the performance of the sprayer. They mention that it works well, is terrific, and easy to put together. Some say that they have had no issues with the unit and that everything is well thought out.

"Don’t read so much into the other reviews. The sprayer worked as described. Arm lever can be placed on either side of the tank for ease of use...." Read more

"Works great and some extra parts im a big guy so can only get 1 strap over my shoulder and very uncomfortable" Read more

"...spray ... a 4 gallon or bigger unit is the only way to go and THIS one works great, it's comfortable to wear and it's secure on your back even on..." Read more

"Last year I purchased this unit to spray vinegar on weeds. It worked great...." Read more

81 customers mention74 positive7 negative

Customers find the pump sprayer very easy to use. They mention it's very easy and natural to strap the sprayer on, and it comes with all the tools needed. They also say it can be filled and assembled in about 10 minutes, and that changing the tips is very easy. Customers say the sprayers comes fully assembled with the exception of the pump handle, and has a few different tips to choose from.

"...Changing the tips was very easy as well, just make sure to have a clear ground beneath you in case you lose or drop the O-ring." Read more

"...The pump mechanism is smooth and easy to operate. The nozzle produces nice patterns and seems to "drip" less that other sprayers I have used...." Read more

"...It was simple to assemble, IT ABSOLUTELY DOES NOT LEAK, PERIOD, and it's extremely easy to use for long periods without hand fatigue...." Read more

"...I really appreciate The breast-feeding at the end of the nozzle. Very easy to use." Read more

57 customers mention57 positive0 negative

Customers are satisfied with the value of the pump sprayer. They mention that it is a good investment for home lawn care, and a great product for the price.

"...All things considered, the sprayer is a good value and I would buy it again." Read more

"...a few different backpack, sprayers, but this one seems to be the best for the money. I really appreciate The breast-feeding at the end of the nozzle...." Read more

"...Very good deal for the cost." Read more

"...Seems like a decent value for the money. Would buy again." Read more

193 customers mention122 positive71 negative

Customers are mixed about the quality of the pump sprayer. Some mention it's a solid sprayer, well made, and has sturdy straps and handle. However, some customers say the threads are not made correctly, they don't seem substantial, and they've come unattached. They also mention that the wand is sketchy and easy to break.

"I haven't used it yet but it looks very well made." Read more

"...They don't seem substantial, and they have come unattached one time while trying to put the sprayer on my back...." Read more

"This is a very good sprayer - high quality, solid pump mechanism, decent capacity. That said, why on earth would Chapin put cheap/tiny straps on it?..." Read more

"...'Three tips with this unit. The fan tip delivers the most volume and issues a very even and substantial atomized mist which will reach out a good..." Read more

47 customers mention15 positive32 negative

Customers are mixed about the leakage of the pump sprayer. Some mention that it has solid construction and doesn't leak, while others say that it started to leak, the spray wand was broken, and the seal on the lid was swollen.

"...It worked great. This year when I went to use it again the seal on the lid was swolen and expanded so that it no longer fits on the sprayer...." Read more

"...Emptied the tank and examined it and saw it was leaking where the tank attaches to the pump assembly...." Read more

"...The nozzle produces nice patterns and seems to "drip" less that other sprayers I have used...." Read more

"...Lol. But an additional wear on the unit for sure! It leaked a little at the end of last season and finally at the end of this season, the seals have..." Read more

46 customers mention26 positive20 negative

Customers are mixed about the comfort of the pump sprayer. Some mention that it's very comfortable with padded straps, while others say that it is very uncomfortable with no padding and hard to fit. The straps are also uncomfortable and awkward.

"...unit is the only way to go and THIS one works great, it's comfortable to wear and it's secure on your back even on our uneven, lumpy, mountainside..." Read more

"...parts im a big guy so can only get 1 strap over my shoulder and very uncomfortable" Read more

"...pleasantly surprised, once the straps are adjusted properly it is very comfortable, the pump handle very conviently placed...." Read more

"...I load it up with 3 gallons and my shoulders still get sore...." Read more

33 customers mention15 positive18 negative

Customers are mixed about the weight of the pump sprayer. Some mention that it's not that heavy, while others say that it gets heavy if you fill it up. The tank is 4 gallons, and it'll be heavy for a small person to effectively lug around.

"...The problem is the weight pulls upward on the clip causing it to come off. I put the clips lower on the horizontal tube of the base...." Read more

"...The sprayer balances nicely on my back and the weight is evenly distributed. The pump mechanism is smooth and easy to operate...." Read more

"...so I decided to give this 4 gallon sprayer a try, I expected it to be bulky, uncomfortable and difficult to use...." Read more

"...go and THIS one works great, it's comfortable to wear and it's secure on your back even on our uneven, lumpy, mountainside ground...." Read more

61 customers mention15 positive46 negative

Customers are dissatisfied with the straps of the pump sprayer. They mention that the strap is lacking tremendously, squeezes the heck out of them, and is inadequate for the home user. The straps are secured to the steel frame with plastic clips that slide around on the frame. Some customers also mention that they are not long enough for some and that the shoulder straps pop off the frame during use.

"...They don't seem substantial, and they have come unattached one time while trying to put the sprayer on my back...." Read more

"...I'm not huge (6' and 200 lbs), but the straps are maxed out and still too small for the sprayer to be worn comfortably. It's really ridiculous...." Read more

"...The seal for the lid is of high quality and fits snugly...." Read more

"After assembly as per the instructions, I find the shoulder straps are short...." Read more

Fix for shoulder strap issue.
5 Stars
Fix for shoulder strap issue.
I purchased this sprayer recently for weed control. It really beats the two gallon traditional hand pump sprayer for convenience of not needing to stop and pump every couple minutes. I read many reviews on it before I purchased and the common complaint was the shoulder straps popping off the frame during use. During assembly I took this into account. The instructions say to attach the clips on the vertical bars under the tank. The problem is the weight pulls upward on the clip causing it to come off. I put the clips lower on the horizontal tube of the base. In use the tended to slide up anyway. A simple tie strap is the cure. Hope this helps!
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Top reviews from the United States

Kevin Thompson
5.0 out of 5 stars Works as described
Reviewed in the United States on March 25, 2024
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Don’t read so much into the other reviews. The sprayer worked as described. Arm lever can be placed on either side of the tank for ease of use. I did pretest the tank with plain water to make sure there were no leaks. Changing the tips was very easy as well, just make sure to have a clear ground beneath you in case you lose or drop the O-ring.
2 people found this helpful
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Jim B.
5.0 out of 5 stars Made in america
Reviewed in the United States on March 14, 2024
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
I haven't used it yet but it looks very well made.
Helpful
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Absolutely junk made loud noise I do not recommend
4.0 out of 5 stars Shoulder straps are short
Reviewed in the United States on April 24, 2024
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Works great and some extra parts im a big guy so can only get 1 strap over my shoulder and very uncomfortable
Helpful
 Report
MHall
5.0 out of 5 stars Great Value
Reviewed in the United States on August 24, 2023
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
I purchased this sprayer to complement my Solo sprayer that is used exclusively for herbicides. I have been pleased with my purchase. The sprayer balances nicely on my back and the weight is evenly distributed. The pump mechanism is smooth and easy to operate. The nozzle produces nice patterns and seems to "drip" less that other sprayers I have used. I have two annoyances about the sprayer: 1) the retention devices that hold the straps to the frame make me nervous. They don't seem substantial, and they have come unattached one time while trying to put the sprayer on my back. Now I find a surface that I place the filled sprayer on so that I can put the sprayer on without having to lift it by the straps; 2) the lid can leak if you jostle the sprayer too much. That could very disturbing, depending upon what you have in the sprayer. All things considered, the sprayer is a good value and I would buy it again.
One person found this helpful
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One time customer
5.0 out of 5 stars Dump the toys and get a real sprayer like THIS one!
Reviewed in the United States on June 11, 2023
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
I'm NOT affiliated with CHAPIN in any way and my comments here are an uncompensated, honest endorsement of a truly great sprayer. It was simple to assemble, IT ABSOLUTELY DOES NOT LEAK, PERIOD, and it's extremely easy to use for long periods without hand fatigue. I bought this after our umpteenth one gallon sprayer gave it up and so far I've sprayed about 4 acres full of weeds. Those gallon units are okay for small areas, but if you have a lot of area to spray ... a 4 gallon or bigger unit is the only way to go and THIS one works great, it's comfortable to wear and it's secure on your back even on our uneven, lumpy, mountainside ground. I only wish it came in a bigger capacity ... say 6 or even 8 gallons would be nice, but this one is pretty sweet. Unless you happen to get an unforeseen lemon ... you won't be disappointed!
7 people found this helpful
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E Miller
5.0 out of 5 stars Best sprayer for the money
Reviewed in the United States on April 19, 2024
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
I have tried quite a few different backpack, sprayers, but this one seems to be the best for the money. I really appreciate The breast-feeding at the end of the nozzle. Very easy to use.
One person found this helpful
Helpful
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Amazon Shopper
1.0 out of 5 stars DON'T USE VINEGAR!
Reviewed in the United States on September 28, 2023
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Last year I purchased this unit to spray vinegar on weeds. It worked great. This year when I went to use it again the seal on the lid was swolen and expanded so that it no longer fits on the sprayer. Noting the 2-year warranty I called Chapin to get a new gasket and was immediately told that I destroyed my sprayer by using vinegar in it. Apparently model 60105 was designed with special seals for use with Vinegar but this model (61800) WAS NOT. Unfortunately, there is nothing in the description that says not to use vinegar in the 61800 sprayer. Looking at the owner's manual there is a generic warning not to use "caustic, acidic, chlorine, bleach or other corrosive solutions". So, you can't use acidic or basic solutions -- but there is no indication of degree of PH that is a problem so you basically can't use anything in it?

In addition to this unclear labeling problem, the initial manufacturing quality was poor as the red lid did not fit correctly onto the white/translucent plastic body. I was able to force it on and work past this inconvenience but after one year, the gasket that goes between the lid and the filter basket expanded/swelled to the point that it does not fit inside the lid. I consider this to be a defective product and the company is not willing to honor its warranty. I called them to give them another opportunity to replace the product but they refused.
9 people found this helpful
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M. M. Burn
5.0 out of 5 stars I use this all the time!
Reviewed in the United States on July 26, 2023
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
I have a large property that I'm trying to rid of noxious weeds and invasive plant species. I don't want to use a broadcast sprayer that will eliminate too wide a variety of plants. I just need to kill specific ones. So, I've spent a lot of time with this tank on my back, spraying "all the things" with a brush killer solution. First, I have to say there's no way I (68 yr old, 140 lb female) would want to carry this thing with 4 gallons in it. I load it up with 3 gallons and my shoulders still get sore. So, if you're my size or not well-muscled, I recommend adding extra cushioning to the shoulder straps from the get-go and not filling it up all the way. But, this sprayer is easy to use, everything is very well thought-out, the pump lever is right within reach of my left hand and works a champ, and the sprayer part works without fail in my right hand. It really works great and I'm getting a lot done!
5 people found this helpful
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Top reviews from other countries

Mr. Stephen Harvey
5.0 out of 5 stars Best Sprayer I have ever owned
Reviewed in the United Kingdom on June 15, 2015
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Having tried to deal with nettles, brambles and thistles on with a hand held sprayer before, I am amazed at both the quality of this sprayer and the results I have been achieving with it. When its full of 15 litres its initially heavy but looking after 5 acres of paddocks its an absolute work of art.
2 people found this helpful
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Gily
5.0 out of 5 stars Professional
Reviewed in the United Kingdom on July 14, 2019
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Excellent value for the money
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Scot
5.0 out of 5 stars Good price
Reviewed in the United Kingdom on September 15, 2019
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
Good
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Luke Nolan
5.0 out of 5 stars 👍👍
Reviewed in the United Kingdom on May 31, 2019
Pattern Name: SprayerStyle: Backpack Sprayer W/Adjustable and Fan NozzleVerified Purchase
👍👍
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