Can this be set as a 10 gallon sprayer?

You would need to know the ratio of product to gallons based on the chemical manufacturer's instructions. For example, 1 Tablespoon = 1 gallon. You would put 10 Tablespoons of product in the sprayer, fill the sprayer to the 10 gallon line and mix well before starting to spray. If you have any other questions about this sprayer that we can help with, please give our technical Customer Service Team a call at 800-950-4458 and they will be happy to assist you. Thank you for your question and for your interest in Chapin Sprayers.

what is the highest level of concentration? I would like to mix a 10-to1 ratio of water to bleach.

You might be better off with a sprayer that has a mixing dial. You cannot vary the mix on this sprayer.

So, if I'm using a product that calls for a ratio of 3 oz./gal., how much product do I put in this thing? I am math challenged, obviously :-(

A gallon is 128 ounces. A quart is 32 ounces. There are 4 quarts in a gallon. If you are saying your bottle sprayer is 32 ounces then I would presume you would need to divide the 3 oz by 4 which is 0.75 ounces. If you have a shot glass most shot glasses are Close to 1 ounce. So you would need to do a shot glass and fill it 3/4 of the way up with your product per usage. At least that is how I calculate it and what I would do.

Can this be used with granular fertilizer?

Hi. The Chapin G390: “Lawn Hose End Sprayer for Fertilizer” can be used with liquid or powder products. When using powders, be sure to mix the solution thoroughly before spraying to avoid clogging. If you have any further questions you can also reach our Technical Support team at 1-800-444-3140 option 1. Thank you for your question.

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G390 32-Oz Hose-End Sprayer for Water-Soluble Fertilizer | Connect to a standard garden hose and mix as you spray; finger control and backflow prevention make use simple

Product ID: 22379904

Details

Brand
CHAPIN
Color
Translucent
Material
Plastic
Recommended Uses For Product
Pest Control
Tank Volume
32 fluid

💧32-oz chemical-resistant tank

🔄Sprays up to 20 gallons per fill

🚿Universal hose fit + quick-connect option

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Description

🌿 Spray Smart, Save Time, and Own Your Lawn Game!

SAFETY FIRST DESIGN - Built-in anti-siphon valve protects your household water supply from chemical backflow—peace of mind guaranteed.
PROUDLY AMERICAN MADE - Crafted in the USA with a lifetime limited warranty and backed by expert US-based customer support.
PRECISION SPRAY CONTROL - Fingertip on/off control ensures you start and stop spraying exactly when you want, keeping your workflow smooth.
SEAMLESS HOSE COMPATIBILITY - Universal hose attachment with optional quick-connect lets you switch nozzles in seconds—no tools needed.
EFFORTLESS LAWN CARE MASTERY - 32-ounce tank delivers extended spraying without constant refills, saving you time and hassle.

The CHAPIN G390 is a durable, 32-ounce hose-end sprayer designed for water-soluble fertilizers and pesticides. It attaches universally to any standard garden hose and sprays up to 20 gallons per fill. Featuring fingertip on/off control and a built-in anti-siphon valve, it ensures precise application and safety. Made in the USA with a lifetime limited warranty, it’s the trusted choice for professional-grade lawn care.

Specifications

ASIN	B00UER1SKK
Best Sellers Rank	#1,689 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #11 in Lawn & Garden Sprayers
Brand Name	CHAPIN
Color	Translucent White
Customer Reviews	4.0 4.0 out of 5 stars (4,758)
Global Trade Identification Number	00023883000035
Hose Length	1.5 meters
Included Components	Instruction Guide, Nozzle
Item Dimensions W x H	4.2"W x 8.3"H
Item Type Name	Lawn Hose End Sprayer For Fertilizer
Item Weight	4.8 ounces
Manufacturer	Chapin International
Manufacturer Part Number	G390
Material Type	Plastic
Model Name	G390
Model Number	G390
Number of Items	1
Power Source	manual
Recommended Uses For Product	Pest Control, Watering, Weed Control
Style Name	Handheld
Tank Volume	32 fluid ounces
UPC	023883000035
Unit Count	1 Count

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$40.49

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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