how does it differ from 190328?

The Field King MAX 190348 Backpack Sprayer is an upgraded version of the Field King Pro 190328 Backpack Sprayer. Here is a list of the Field King MAX 190348 upgrades: 1) 21" stainless steel wand with chemical resistant poly lining. 2) Deluxe padded harness with back pad and lumbar support, adjustable shoulder straps, waist belt and chest cinch strap. This backpack harness ensures all-day comfort while you work. 3) Fold away pump handle for easy storage. Both backpack sprayers are equipped with the internal, No Leak Pump which prevents liquids from leaking down your back. The internal pressure chamber can reach up to 150 PSI allowing a straight stream to reach 30 feet (dependent on the chemical being sprayed). Also they both have Viton seals for resistance to harsh chemicals and dual filtration to prevent clogging. If you have any questions, please feel free to contact our friendly customer service at 1-800-311-9903. Thank you for your interest in our products.

does this have a built it agitator and can wettable powders be used in it

No agitation. It’s a manual backpack.

So i have a pest control company and i was looking to add a back pack - any pco out there using this or i am open to other suggestions??

HI, This unit is ideal for use with cleaning solutions, disinfectants, stains, sealants, fertilizers, herbicides, and fungicides to help beautify your outdoor areas. I don't see anything saying that it can't be used for pest control. Thanks!

does this version also come with the 25psi regulator?

It has a pressure regulator, but I think of it more as a no drip regulator that prevents the the spray that remains in the wand from dripping if the pressure gets below 25 psi. It also ensures a clean spray pattern as most nozzles don't do a good job of dispersing the spray below that pressure.

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Field King Max 190348 Backpack Sprayer for Professionals Applying Herbicides

Field King Max 190348 Backpack Sprayer for Professionals Applying Herbicides

Product ID: 284465053

Details

Brand
Field King
Colour
White
Material
Stainless
Recommended uses for product
Chemical Pest
Tank volume
4 Gallons

🎯Up to 150 PSI for precision spraying

💧No Leak Pump keeps you dry

🔧Tool-free seal changes in minutes

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AED 844

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Description

🌿 Spray Smarter, Not Harder — The Pro’s Choice for Precision & Comfort

SPRAY LIKE A PRO - Sprays up to 150 PSI with a pressure regulator for consistent, targeted herbicide application.
EFFORTLESS MAINTENANCE - Change Viton seals in under 5 minutes—no tools required, 7x faster than competitors.
ALL DAY COMFORT HARNESS - Deluxe padded back, wide waist belt, and chest strap keep you supported during long jobs.
VERSATILE NOZZLE ARSENAL - Includes 6 specialized nozzles plus TeeJet compatibility for every spraying need.
STAY DRY WORK CONFIDENTLY - Internal No Leak Pump design prevents chemical drips on your back—comfort meets safety.

The Field King Max 190348 Backpack Sprayer is a professional-grade, manual sprayer featuring an exclusive internal No Leak Pump to keep you dry, a durable 21-inch stainless steel wand with chemical-resistant Viton seals, and a premium lockable brass shut-off. It delivers up to 150 PSI for precise herbicide application, includes 6 versatile nozzles plus TeeJet compatibility, and offers quick, tool-free maintenance. Designed for comfort with a deluxe harness system, it’s the ultimate sprayer for efficient, safe, and comfortable weed and pest control.

Specifications

ASIN	B006WVFJPC
Brand Name	Field King
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (1,928)
Global Trade Identification Number	00841688002807, 30841688002808
Hose Length	21 Inches
Included Components	6 nozzles (brass adjustable, low-volume fan, high-volume fan, foaming, and two flat fans) and compatibility with TeeJet nozzles
Item Dimensions W x H	38.1W x 57.2H centimeters
Item Type Name	Field King Max 190348 Backpack Sprayer
Item Weight	12.8 Pounds
Manufacturer	Fountainhead Sprayers
Manufacturer Part Number	190348
Material Type	Stainless Steel Brass
Maximum Pressure	150 Pound per Square Inch
Model Name	Field King Max 190348 Backpack Sprayer
Model Number	190348
Power Source	Manual
Recommended Uses For Product	Chemical sprayer, Pest Control, Weed Control
Style Name	Stainless Steel Wand Upgrade, Manual
Tank Volume	4 Gallons
UPC	841688002807
Unit Count	1 Count

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