SKU: 84912431218

Solo 425 4-Gallon Backpack Sprayer

Sale price$104.39 Regular price$115.99
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Solo 425 4-Gallon Backpack SprayerNow with a piston pump, operated by a maximum leverage pump handle, which can be mounted on either side of the tank. Pump chamber holds pressure, so minimum pumping effort will produce consistent pressure (maximum pressure is 90 psi) for a wide range of spraying tasks. High impact, UV resistant polyethylene tank is made for hard field use. Leakproof lid has a one way valve that lets air enter the tank (to prevent vacuum build up) but keeps the spray

Now with a piston pump, operated by a maximum-leverage pump handle, which can be mounted on either side of the tank. Pump chamber holds pressure, so minimum pumping effort will produce consistent pressure (maximum pressure is 90 psi) for a wide range of spraying tasks.

  • High-impact, UV resistant polyethylene tank is made for hard field use.
  • Leakproof lid has a one-way valve that lets air enter the tank (to prevent vacuum build-up) but keeps the spray material in.
  • Large filler port with its removable strainer, permits quick on-site refills without a funnel. Dirt and large particles are further screened by the built-in filter in the piston chamber.
  • 22" spray wand is reinforced with fiberglass and comes with a trigger sprayer, quality shut-off valve, and 4 nozzle options (fan, hollow cone, plastic adjustable and jet stream spray patterns).

Solo 425 4-Gallon Backpack Sprayer: A Versatile Solution for Your Spraying Needs

When it comes to efficient and precise spraying, the Solo 425 4-Gallon Backpack Sprayer is a reliable tool that stands out among its competitors. This versatile backpack sprayer offers a range of benefits, making it an ideal choice for various applications.

High Capacity for Extended Use

The Solo 425's 4-gallon tank capacity is a standout feature that sets it apart from smaller sprayers. This larger capacity allows you to cover a more extensive area without constantly refilling the tank. Whether you are spraying pesticides, herbicides, fertilizers, or other liquids, the ample capacity of the Solo 425 ensures that you can complete your task efficiently, saving you time and effort.

Enhanced Mobility and Comfort

One of the key advantages of the Solo 425 is its backpack design. The ergonomic backpack straps and padded backrest provide exceptional comfort during extended use. This design allows you to carry the weight of the sprayer on your back, distributing it evenly and reducing strain on your arms and shoulders. As a result, you can work for longer periods without fatigue, making the Solo 425 an excellent choice for large gardens, orchards, or even commercial applications.

Adjustable Nozzles for Precision

Precision is crucial when it comes to spraying different types of liquids. The Solo 425 comes equipped with adjustable nozzles that allow you to customize the spray pattern to suit your specific needs. Whether you require a fine mist for delicate plants or a broader spray for larger areas, the Solo 425 can be easily adjusted to meet your requirements. This versatility ensures that you can achieve the best results while minimizing product wastage.

Durable Construction for Longevity

The Solo 425 is built to last. It features a high-quality construction with a UV-resistant, high-density polyethylene tank that can withstand exposure to sunlight and harsh chemicals. The pump handle is also designed for durability, ensuring that it can withstand frequent use. With proper care and maintenance, the Solo 425 is an investment that will provide years of reliable service.

Easy to Use and Maintain

Another benefit of the Solo 425 is its user-friendly design. The sprayer is easy to assemble and operate, making it suitable for both beginners and experienced users. Maintenance is also straightforward, thanks to the integrated pressure relief valve, which allows for safe and easy opening of the tank. Cleaning and servicing the sprayer are hassle-free, ensuring that it remains in top working condition.

Versatile Applications

The Solo 425 is a versatile tool that can be used for a wide range of applications. Whether you need to apply pesticides to protect your crops, distribute fertilizers to promote plant growth, or control weeds with herbicides, this sprayer has you covered. Its 4-gallon capacity and adjustable nozzles make it suitable for various tasks in agriculture, horticulture, landscaping, and beyond.

The Solo 425 4-Gallon Backpack Sprayer is a reliable and efficient solution for all your spraying needs. Its generous tank capacity, comfortable design, adjustable nozzles, durability, ease of use, and versatility make it an excellent choice for both residential and commercial users. The 4-gallon size is particularly beneficial as it allows for extended use and minimizes the need for frequent refilling. Whether you are a seasoned professional or a home gardener, the Solo 425 is a valuable tool that will help you achieve precise and consistent results in your spraying tasks.

We especially recommend the brass adjustable spray nozzle.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84912431218

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4.9 ★★★★★
Based on 20 reviews
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Verified Purchase
Kathleen Kowalski
Dallas, US
★★★★★ 4
Not like the pictures but well worth the money
Size: Queen, Style: 1 Green
4 stars because it is not nearly as padded as the descriptions and images make it seem. The filling flattens easily and doesn’t provide any support. That being said it does make my bed more comfortable and soft and has improved my sleep quality. I have a 12 in soft/medium firm memory foam mattress that was wonderful for the last +2 years till my back surgery ~6 months ago. Since then my joints ached when trying to sleep and when waking, my back would be all out of place and achey, and I was untested. Since buying this topper these issues have improved by 80% or more. It is a great addition to my bed and I don’t regret buying it.
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Reviewed in the United States on May 18, 2026
A
Verified Purchase
Aurihazuma
Natrona Heights, US
★★★★★ 5
OMGAAAAAWD!!! HEAVEN!
Size: Full, Style: 1 Green, Size: Full, Style: 1 Green
All I can say is OMGAWD!!! Thank You~!~!! We got a new mattress after the previous "The Cloud" Serta pillow top (I'll never have another one) lasted for less than 8 years and I totally despised not being able to flip it models failed.. The new model is also a hybrid mattress, but is flippable and was just a bit too firm. I was feeling progressively more and more uncomfortable as the nights wore on, and with my serious back problems.. this just wouldn't do.. So I began searching "Our Beloved Amazon - heh" for an alternative, and after quite some time and research finally landed on this wonderful topper. It's like sleeping on top of well stuffed Ida Down on top of piles of silk. So very comfortable and my back pain is virtually completely gone now -such a relief! Be sure you follow the instructions on care and initial setup. You Do have to let it fluff out because of the vacuum packing (it wasn't really heavy btw). Mine decompacted fine, but I still want to run it through the dryer when we next venture to the laundromat. Shake it a little here and there when you take it out and at least let it sit for a few hours. It was just as easy to put on the bed as a regular mattress protector, and I also put my regular protector on top of it for added security and waterproofing. The materials feel like they are of good quality.. Viscose is also called Rayon and can be made from a number of different materials, so take good care of it and follow the washing instructions carefully. Delicate only, and cool only, and use only a horizontal washer that does not have a central agitator or you will tear it up. Only dry on low temperatures (preferably in a very larger laundromat dryer so it has plenty of room to loosely toss about. Drying it in the sun is alright as well, but it won't fluff like you want it to. I recommend using a waterproof and bug proof protector on top of this just to be sure you take care of it properly. Now I want to buy one for both my Mother and my Aunt HAHAHHA! TG it is in my price range.. barely. (Addendum: I have run it through the big dryer at the laundromat.. The dryer was cold so I gave it a quick warm on medium for anout 2 minutes and then tumbled on low for quite some time. The topper was fully ready in about 25 minutes, but I decided to elt it go on low while I did the rest of my laundry. It did perfectly and is just like the manufacturer photos.. I was so tired when I arrived home that I just flaked out on top of everything.. It was so comfortable that I was out liek a light in very short order and slept beautifully. I can attest that if you use this below your sheets instead of covering it with an additional mattress protector, that it does have better cooling effect. I will of course keep my waterproof/bugproof protector on top just for safety. The cat is nutz about the new topper as well.) Namaste.
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Reviewed in the United States on August 6, 2025
C
Verified Purchase
Chelsey Yarno
Whiting, US
★★★★★ 5
Pleasantly surprised!
Size: Queen, Style: 2 Dark Gray
I had been searching for a quality mattress topper in hopes of extending the life of our mattress. I compared a few options and kept coming back to this one. I have to admit I was skeptical because the price point was lower than many options. This topper is SO comfortable and soft! I left it laying out for a couple hours and then followed the instructions to put it in the dryer. Worked like a charm. I’ve been going through issues with hip pain and this has made a difference in my sleep and I’m waking up in less pain. So happy I tried this out. The padding is so comfortable and fit on the mattress using the same sheet we had.
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Reviewed in the United States on May 17, 2026
K
Verified Purchase
KeepsGettingBetter
Chelsea, US
★★★★★ 5
So perfectly soft
Size: King, Style: 2 Dark Gray
My husband was complaining about the mattress, and wants to spend a lot of money on a new one like the ones at the Waldorf. I asked him to give me a chance to try to fix it first. Watched youtube videos about hotel style beds, and landed on the need for a mattress topper. This one is so... very... comfortable. I thought the grid pattern would bother me, but nope. You don't realize how much heat you soak up from your mattress until you get a nice airy layer in between. I almost completely stopped sweating at night, and he's stopped complaining about hurting as much. This is another of those items that I'm scared of washing too much, but it's held up with care and caution. If it starts to get a bit too squished, I just fluff it in the dryer and the padding poofs right back up. The sides are deep and my mattress sinks right into the pocket with no pulling. I have bad back pain and I am certain this has been helping support my back a bit better, so I wake up more refreshed. I'm sorta popping out of bed like I used to years ago. He still plans on a new mattress, but this has saved us money, for now, and when we get the new one, this will layer on top like a dream. I'm glad I took the chance on this, it has really improved our rest, and that's so important.
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Reviewed in the United States on May 16, 2026
C
Verified Purchase
Cherokee
Lake Worth, US
★★★★★ 4
Soft and pretty
Size: Full, Style: 1 Green
Not as thick as I thought it would be. That doesn't matter, though. Being thinner made it easier to handle and I like that. Actually, over all this is a good product. Placing it in the outdoors to sun out a bit took the odor away quickly. I think my company will be impressed with the comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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