My4Sons M4 Agitator
The M4 with a built-in agitator, for anyone spraying powders or mixes that settle in the tank.
Amazon $299.99$299.99
4 gal80 PSIIncluded
2 My 4 Sons backpack sprayers ranked. Each one is scored and ranked against every brand in its type, so "#3 mid-size" means third of all mid-size backpack sprayers here, not third among My 4 Sons's own.
My 4 Sons makes 2 current backpack sprayers: 2 4 gallons and up. Prices run from $249.99 for the My4Sons M4 4.5 Gallon to $299.99 for the My4Sons M4 Agitator. Its best-rated model: the My4Sons M4 Agitator (#2 of 16 4 gallons and up, rated 3.7).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
My 4 Sons backpack sprayers 2
- My4Sons M4 Agitator#2 4 gallons and upFull review
The M4 with a built-in agitator, for anyone spraying powders or mixes that settle in the tank.
Amazon $299.99$299.994 gal80 PSIIncluded - My4Sons M4 4.5 Gallon#9 4 gallons and upFull review
A well-equipped 4.5-gallon sprayer with a big nozzle kit and an extendable stainless wand, for homeowners who spray many different products.
Amazon $249.99$249.994.5 gal80 PSIIncluded
