Field King

Field King® Variable Flow Backpack Sprayer

Professional manual-pump backpack sprayer with variable flow adjustment for precise application control. Built for landscaping and grounds maintenance professionals.

4-gallon capacity with variable flow control
21" professional poly wand
Padded deluxe shoulder harness
Multiple nozzle options for different applications

Buy direct Where to buy Parts for this model 17

Features

4-gallon capacity with variable flow control
21" professional poly wand
Padded deluxe shoulder harness
Multiple nozzle options for different applications
In-line filter system
Efficient pump design

Specifications

TypeBackpack Sprayer
Seal materialViton
PowerManual pump
Model / item #190723W
Warranty1 Year Limited

Downloads

Owner's manual PDF · opens in a new tab

Chemical compatibility

See which chemicals match this sprayer's Viton seal material before you spray. Always confirm against the chemical's Safety Data Sheet.

Check chemical compatibility

Where to buy

Two different things, two places to get them.

Buy this sprayer

Order direct from The Fountainhead Group, or find it at home, garden, and farm retailers nationwide.

Buy direct Where to buy

Genuine FGI parts

Replacement parts

Order genuine replacement parts matched to this exact model, shipped direct from our parts store.

17 genuine parts matched to this model

Parts for this model

Help & FAQ

Questions about this product or chemical compatibility?

Our team can help. Call (800) 311-9903 or email info@thefgi.com. You can also check seal compatibility with our Compatibility Tool.

What's the warranty, and how do I register?

This model carries a 1 Year Limited warranty. Register your product on our Warranty & Registration page to activate coverage.

How do I find replacement parts?

This model has its own parts collection. Open Parts for this model to order genuine replacement parts shipped direct.

Where do I find chemical safety (SDS) information?

Always read the chemical manufacturer's label and Safety Data Sheet (SDS) before use. Our Compatibility Tool shows seal-material compatibility, but the SDS is the authority for handling and safety.

Are FGI products made in the USA?

Yes. The Fountainhead Group has manufactured sprayers in New York since 1888.