Milwaukee 2820-21PS M18 18-Volt 4 Gal. Lithium-Ion Cordless Switch Tank Backpack Pesticide Sprayer Kit with 3.0 Ah Battery and Charger
The Milwaukee M18 SWITCH TANK 4 Gal. Backpack Sprayer kit delivers the industry’s first interchangeable tank design with no manual pumping. Designed to meet the needs of professional landscape maintenance, the battery-powered backpack sprayer provides users with instant, constant and adjustable pressure up to 120 psi and a 25 ft. spray distance. The 5-mode pressure adjustment knob adjusts the pressure between 20 psi to 120 psi, providing users with the capability to complete a wide range of applications.
The M18 REDLITHIUM XC3.0 Battery provides users with up to 12 tanks of spraying per charge. The 4 Gal. Sprayer Tank Assembly features a dual diaphragm pump for longer pump life and Viton seals for increased durability against harsh chemicals. The sprayer tank has a wide mouth opening for easier pouring and a strainer that filters debris from getting into the tank.
The backpack frame includes wide straps providing users with added comfort during extended spraying applications and a handle for convenient transport and storage. The 4 Gal. Sprayer is made up of 2 components the M18 SWITCH TANK Powered Base and the SWITCH TANK 4 Gal. Sprayer Tank Assembly. The Powered Base includes the motor, battery compartment and REDLINK electronics, while the interchangeable Tank Assembly includes the pump, hose and wand.
Instant, Constant and Adjustable Pressure for Ultimate Control. Includes: M18 SWITCH TANK Powered Base, SWITCH TANK 4-Gallon Sprayer Tank Assembly, Stainless Steel Wand, Adjustable Nozzle, Fan Nozzle, Angled Nozzle Adaptor, M18 REDLITHIUM XC3.0 Battery, M18/M12 Multi-Voltage Charger
- Up to 120 PSI & 25′ Spray Distance
- Run-time: Up to 12 tanks per charge with M18 REDLITHIUM XC3.0 Battery
- Critical seals: Viton for increased durability against chemicals
- Dual Diaphragm Pump: For Longer Pump Life
- Wide Mouth Opening and Strainer: For Easier, Debris Free Pouring
- Wide Straps for Comfort During Extended Duty Cycles
- Transport Handle for Convenient Transport and Storage
drake –
So far this has been a great sprayer. I did have one previously which did not work on arrival but it was quickly replaced by Milwaukee. I like this sprayer because I don’t have to worry about cross contamination. I have one for Pesticides, another for Roundup, Herbicides and for Natural spraying (fruit trees, etc). I hook them on the wall with their built in hook. I like that it can be adjusted from barely a dribble to a full high reach spray. It also works with my standard 18v Milwaukee battery which is a great benefit as well. I don’t have to workout one arm pumping away. The pack is a bit heavy but I have adapted a holder to the back of my tractor that I use to carry it throughout my property.
Lisa L –
amazing sprayer no leaks works fast very sturdy
Me –
Fantastic product as usual from Milwaukee. I’ve actually increased the efficiency of my weed spray mix as my previous sprayer for 2 gallons would only last about 30 min worth of spraying where 2 gal in the Milwaukee will last me 2 hrs straight or more. Only gripe is there is not sufficient padding on the shoulder straps for the weight of the fully filled pack.
Adam –
This sprayer is a monster! First, this is not a sprayer that you pull out to take care of the half dozen dandelions invading your lawn. This thing is a high capacity, high performance spraying system. You’d use this to take care of the neighborhood’s dandelion problems! It’s big, and heavy, especially with 4 gallons in it! It is a backpack so the weight is pretty well distributed, and because it’s battery operated it doesn’t require you to pump. The coolest part is that the tank, and sprayer are separate from the backpack, that means you can have a tank for grass killer and one for fungicide and one for water, with no risk of cross contamination. Given its size, and costs, (battery and charger, the tool and separate tanks) this is a professional tool.
Howard H. –
Powerful, flexible, comfortable, and easy to use. The Milwaukee “switch tank” sprayer (Model 2820-21PS) provides power and capacity for large jobs and the detachable tank makes for rapid switching between liquids (e.g. insecticide, fertilizer). It’s virtually dripless when changing tanks. There is also a convenient drain port for the tank. I was easily able to spray jets of liquid to the second story of the house, or adjust the nozzle to broadcast large areas of the lawn and shrubbery. The unit comes with two nozzles: a heavy duty adjustable brass nozzle and an angled fan-spray plastic nozzle. The pump ran strong until the tank had less than two cups of liquid before sputtering. I ran about 3 tanks of water (12 gallons total) as a test and the battery held strong and still showed fully charged. I have no doubt I could have sprayed 10 or more with the included 3-Ah battery. The power switch and flow control knob are easy to reach and operate, and the trigger lock on the spray wand helps tremendously. The straps are fully adjustable and provide a wide load surface so wearing it is fairly comfortable, even fully loaded. The waist band is wide and strong so it serves as a back brace, which is important given a fully loaded tank and sprayer can weigh 55 pounds. Putting that much weight on can be a challenge, but placing the loaded unit on a counter and stepping backwards into it worked well. The unit has a great wand-storage mechanism when not in use. It clips the long wand near the trigger while the tip drops into a small pocket on the base of the sprayer. Unfortunately, the clip and pocket are on the sprayer base, not the tank, and since the wand/hose/tip stay with the tank when it’s removed, there is no way to store the wand when the tank is disconnected from the sprayer. It’s a minor inconvenience Having the hose/want integrated with the tank has pros and cons. The advantage is you never have to rinse the hose and tank if you have multiple tanks. The con is cost. The price of just an extra tank (with wand, hose and tip) is 50% more than the cost of some four-gallon manual backpack sprayers. As an extra, the unit fits nicely on an 11” deep shelf between two studs that are 16” on center, though the straps dangle. Spare tanks will fit even better. The sprayer is a joy to use and while it may be too much for most home owner (i.e. DIY) landscape jobs, it certainly makes them – and larger jobs – very easy.
Tom –
This is another quality Milwaukee tool product. You can’t go wrong with this brand. The backpack sprayer is a convenient way to spray any number of jobs out there. It can be used as stated for pesticides around the property, though it can be used for anything else that needs spraying. It has a four gallon capacity. The best thing is that it is not a manual pump. It is powered by the rechargeable M18 REDLITHIUM XC3.0 battery – not included. Just squeeze the sprayer grip and spray. Extra tanks can be purchased to use for different chemicals. The tank is easy to remove, fill, replace and secure with the latch. It can spray up to twenty five feet at 20 – 120 psi. Not sure how much this unit weighs, but it is heavy when empty. Each gallon of liquid weighs over eight pounds, so it is a heavy load.