Chapin 4 Gallon Tree/Turf Pro Backpack Sprayer (61950)

Chapin Tree / Turf Pro 4 Gallon Backpack Sprayer (61950) is a high-quality backpack sprayer that's specially designed for fertilizers, pesticides, herbicides and watering applications. This 4-gallon tank has an ambidextrous pump handle that can be attached on both sides of the unit for left or right hand pumping. It also conveniently folds out of the way to let you store it easily. It comes with 3-stage filtration system: strainer basket, filter in piston cylinder, and filter in shut-off, along with Cushion grip shut-off, Viton seals to ensure key areas will be secured and padded shoulder straps to allow you to carry your sprayers comfortably. It also includes a durable stainless steel extension wand that clips onto base rail or pump handle for easier transport. Its large 4-inch opening allows you to clean and fill it easily.

This model 61950 has a fold away handle, plastic wand and a shut off with no pressure gauge. 

Another option: model 61900 has a regular pump handle, shut off with a gauge and a chrome plated steel wand and straps with more padding.