The difference between these B&G sprayers is the tip that they come with. The N124-S-18 has a standard adjustable 4 way nozzle. The N124-CC-18 has the Crack & Crevice 4 way tip which allows you more direct treatments in voids. You can see the individual tip parts here:
N124-S-18: Part 5800
N124-CC-18: Part 5800CC
Crack & Crevice Extension for 5800CC: Part 5700-B
The B&G 1 Gallon Sprayer + 18-inch wand - N124-CC-18 has 50 psi.
From the bottom of the tank to the top of the handle, on the B&G Sprayer 1 Gallon 18 in. Wand & Extenda-Ban Valve (N124-CC-18), is 24 inches and then the wand and hose sometimes stick up higher than that depending on how you have it resting in the built in drip tray. That could be laid down next to the unit in the box if need be though.
Technically, yes, you can use a sprayer like the B&G Sprayer 1 Gallon 18 in. Wand & Extenda-Ban Valve (N124-CC-18) can be used to make both herbicide and pesticide applications. If you plan to use it for both insecticide and herbicide applications, make sure that it’s rinsed thoroughly after each use. It is strongly recommended by both our company and herbicide/insecticide manufacturers to use a different sprayer for herbicides as well as another one for insecticides.
The B&G Sprayer will spray approximately 10 feet vertically when it is fully pressurized.
The B&G Sprayer 1 Gallon 18 in. Wand & Extenda-Ban Valve (N124-CC-18 would be great for general pest applications.