Search  for anything...
Chapin International

Chapin International 63900 Self Cleaning Backpack Sprayer, 4 gal, Translucent White

  • Based on 112 reviews
Condition: New
Checking for the best price...
$104.95 Why this price?
Save $25.04 was $129.99

Buy Now, Pay Later

As low as $17.49 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 24
Order within 16 hours and 20 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • 4 gallon translucent tank with extra wide 6-inch mouth opening for easy filling and cleaning4-gallon translucent tank with extra wide 6-inch mouth opening for easy filling and cleaning
  • Patented jet clean self-cleaning pump technology with 3-stage filtration system to keep filter clog-free from debris and residue
  • Stainless-steel wand with cushion grip poly shut-off and 3 nozzles including poly fan, poly cone and adjustable brass
  • Swing-away handle for right or left hand use, folds up for storage
  • Padded shoulder straps and back pad

Description

Best in class, ease and innovation combined, the Chapin Self-Cleaning Backpack sprayer is loaded with features for the DIY Homeowner yet rugged enough for the Professional. Boasting the innovative and patented Jet Clean, self-cleaning pump technology, that directs a powerful burst of liquid through the tank filter with each downward pump stroke. The filter stays free of debris – virtually eliminates clogging! The benefits continue with a 4-Gallon translucent poly tank that has an extra-wide, 6-inch mouth opening for easy filling and cleaning, a 3-stage filtration system, cushion grip poly shut-off, 3 nozzles for a variety of applications and a stainless- steel wand. Another innovative feature is the swing-away pump handle that can be set up for either right or left hand use and it folds up when you’re done, providing more compact storage. Padded shoulder straps and back pad will give you hours of comfortable spraying. Compatible with common fertilizers, weed killers and pesticides. We also offer full technical support via our Customer Service Team at and product information at chapping From the Manufacturer Our residential, professional and industrial sprayers are designed to meet the needs of your lawn, garden, home, farm, professional, or commercial project. With a focus on innovation gained through industry knowledge, Chapin products have been manufactured with excellence in the United States using global components for more than 130 years. We offer full technical support at to help you find the right sprayer for your application or visit our website atfor more product information and specifications. Chapin, the way to spray since 1884.

Brand: Chapin International


Tank Volume: 4 Gallons


Color: Translucent White


Recommended Uses For Product: Chemical sprayer, Farm/Agriculture/Livestock, Home & Garden, Turf/Landscape


Material: Plastic, Polypropylene (PP)


Brand Name: Chapin International


Recommended Uses For Product: Chemical sprayer, Farm/Agriculture/Livestock, Home & Garden, Turf/Landscape


Included Components: backpack sprayer


Model Name: Self Cleaning Backpack Sprayer


Model Number: 63900


Global Trade Identification Number: 06


Manufacturer Part Number: 63900


Item Type Name: Backpack Sprayer


Manufacturer: Chapin International


Unit Count: 1.0 Count


Tank Volume: 4 Gallons


Item Weight: 10.5 Pounds


Hose Length: 48 Inches


Color: Translucent White


Style Name: Backpack


Power Source: Manual


Maximum Pressure: 60 Pound per Square Inch


Material Type: Plastic, Polypropylene (PP)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Well made and works great
I purchased this sprayer versus the other similary Chapin pro model that is about 5 dollars less. This model is built much better and has a self cleaning pump. For the extra 5 dollars you get a better pump action, metal handle that folds out of the way, and a stainless steel wand. The top opening is also wider and I believe it has an extra filter system. I filled it with water right out of the box and there was zero leaks. Operated perfectly and the pumping action is fairly easy and provides plenty of spraying power. I sprayed about 10 gallons of solution with zero problems. This u n it also has a back cushion as well as the thick padded shoulder straps. The only thing I noticed is that it didn't come with the lumbar support. The 6-8182 back strap if bought separately comes with the lumbar support. I didn't find it an issue but I may call Chapin and get the scoop on why it wasn't included. Maybe it's not needed. Anyway great sprayer and should last forever. Oh yea, the other model has a pressure meter on the wand, this one doesnt. But who needs to know the pressure coming out of the wand? It would fluctuate so often I don't see it being useful. Just pump it a few times and spray till you need to pump again....it's a no brainer. ... show more
Reviewed in the United States on June 11, 2015 by Alan
    • Chapin 4 gallon backpack sprayer
Review Image by Jack Federoff Jack Federoff
Review Image by Jack Federoff Jack Federoff
What can I say about the Chapin backpack sprayer other than its another great product by Chapin. Very easy to assemble, comfortable to wear, easily adjustable straps. I like the simplicity as well as the durability in the creation of this product. As with any product there is usually 1 thing keeping it from being perfect, and that is the gradient markings are on the back of the sprayer hidden behind the soft back pad. It would be great if the level marking were on the side to make it easier to read. I sprayed 2 gallons on my weeds and it lasted quite a while so in my opinion the spray head is really efficient. It does come equipped with another spray tip and an allen wrench. ... show more
Reviewed in the United States on January 15, 2024 by Jack Federoff Jack Federoff
    • DON'T DO IT!!!!!!
I received the sprayer and put it together. I placed it on my garage workbench so as to make the straps easier to get into, and started filling it with Round Up herbicide. As I finished pouring the 1+ gallons into the container, I heard what sounded like a mini waterfall. I looked at the pump area and Round Up was pouring out of the seal that connects the pump to the bucket. I quickly placed the sprayer into an oil drain pan on the floor and surveyed the spill; Round Up poison made a good sized pool on my butcher block work bench and soaked several things, including paperwork. It was also on the garage floor and on me. The O-ring failure was not evident at a glance, and was missed when I looked everything over prior to filling the tank. Apparently the large diameter O-ring connection between the tank and pump had separated beneath the band clamp that holds it all together. I tried reassembling everything, but the surfaces would not square to one another and I couldn't get the plastic band clamp to properly seat the two sides together. I pulled the pump, applied some Vaseline to the O-ring and tried to re-mate the two assemblies. I could get it mostly together but couldn't flush the two surfaces up to one another enough to allow the cheesy plastic band clamp to hold everything together. I gave up. An hour later I was done cleaning up the hazardous spill. Hopefully I won't get sick from poison exposure - have you ever read the warnings on a jug of Round Up? Thanks for a heck of a Saturday morning, Chapin. One more thing - as I re-boxed the sprayer for return, I noticed the tape area on the Chapin box flaps had a couple layers of different tapes evident. Did Amazon take this sprayer in as a return, re-tape the box and send it back out again? Bottom line: STAY AWAY from this sprayer. I went down to a local lawn mower / tractor dealer and picked up the Stihl equivalent to the Chapin. It was a few bucks more, but the difference in quality was night and day. ... show more
Reviewed in the United States on August 23, 2014 by Santa CruZin
    • 4 Gallons of Great
Yeah, this thing works like a champ. 4 gallons makes for easy work around my yard. The wide mouth opening makes chemical mixing easy and the extra large handle on the 6" cap makes spinning the top off easy. I like that the pump handle that can be easily rotated up and out of the way for storage and back into place for work. The use of stainless steel is very appreciated. No leaks -- no complaints -- it just works. ... show more
Reviewed in the United States on July 11, 2017 by Joe Urh
    • Not great
I have applied a lot of herbicide in my life, and I was underwhelmed by this sprayer. I had constant slight leak problems and spent hours trying to fix it but could not. Also, the OEM straps are just plain torture. If you buy this sprayer, contact the manufacturer to find the beefier straps that they sell ($40/ unit). I was really happy with the spraying pressure I could achieve with this sprayer, but the slight leak was a dealbreaker. This was my first and last Chapin product. I must say though that one of my colleagues swears by this brand, so maybe I got a lemon. I've used a bunch of Solo sprayers and they never leaked on me. next time... ... show more
Reviewed in the United States on December 11, 2014 by bjg1021
    • QC and design flaws
First, I am biased after receiving one sprayer that was missing key parts like the wand and nozzles. The second one shipped was clearly used, but had all the parts. I reassembled the pieces that were put together wrong and cleaned out the spray residue, and it seemed okay. However, upon use under pressure, it drips from a side seam. The uncomfortable harness is way too narrow and cuts into my shoulders when the tank is full. The markings to see the fill level are hidden behind the back pad instead of on the side of the tank. The sprayer does spray okay, but not with much force. I won't be able to spray as high in trees as with my small hand-held sprayer. I will try to epoxy the seam to see if that helps the sprayer hold pressure better. Overall, between the design and quality control issues and the fact that I received two sprayers that looked to have been previously returned, I can't recommend this sprayer. ... show more
Reviewed in the United States on September 14, 2022 by MikeOpines
    • More comfortable than our very old back pack
More comfortable than our old sprayer, nozzle has better adjustment and longer. The feature of a filter is great as our old one would get plugged up with an occasional bug or piece of grass. The lid is easier to grip than our old one as well and the neck sticks up instead of being recessed.
Reviewed in the United States on August 9, 2023 by Trekker

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...