Does this unit have a "release pressure valve" (used for expelling air safely from container before opening)?

No. It does not have a release valve. You have to turn the handle to release the pressure. Use caution if you are using dangerous chemicals as it can blow back at you.

Could we use this to spray pesticides as mist? If yes, then how can we do that setting as I tried, but couldn't find such setting of nozzle.

I wanted it to mist too, but couldn't get it to do that. Even if you adjust the nozzle to spray as opposed to stream, it's still not exactly a fine mist.

Does anyone know how many SQFT two gallons will cover?

It will vary based on the product you are using so read the directions carefully for every product you spray. But in general, 1 gallon for 1,000 sq. ft. That said, I just used it on a lawn bowling green which is about 14,000 sq. ft. The pesticide I used said 1 gallon to cover 1,000 sq. ft. That would have been 12 gallons to cover the green, but when I had finished I used half that amount. This may have been because I walked too fast (I walked about the pace I do when I spread fertilizer). So, depending on how fast you walk, how comprehensive you want your coverage to be, and what the pesticide label suggest, I would say 1 gallon covers at least 1,000 sq. ft and at most 2,000 sq. ft. I also recommend using a dye/colorant so you can tell where you have sprayed and how think the coverage is.

Where is it made? China?

China/USA, either way..horrible product. Brand new from the box and wouldn't spray even a drop. Absolute waste.

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Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White

Product ID: 314760878

Details

Brand
CHAPIN
Colour
Translucent
Material
Polypropylene
Recommended uses for product
plant care
Tank volume
1 Gallons

📏12-inch wand + 34-inch hose reach

🛡️SureSpray anti-clog filter

🇺🇸Made in USA with local support

₩161958

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Description

🌿 Spray Smart, Spray Strong — Your Garden’s Best Kept Secret!

EXTENDED REACH - 12-inch extension wand plus 34-inch hose means no more awkward bending or stretching to reach every corner.
CLOG FREE EFFICIENCY - SureSpray filter keeps dirt and debris out, so you spend less time fixing and more time spraying.
ERGONOMIC LIGHTWEIGHT - Comfortable pump handle and translucent 1-gallon tank make watering and spraying effortless and mess-free.
PRECISION SPRAY CONTROL - Adjustable poly cone nozzle lets you dial in the perfect stream or shower for every plant and pest.
TRUSTED AMERICAN QUALITY - Proudly designed and supported in the USA with a 1-year warranty for peace of mind.

The Chapin 20000 is a 1-gallon, hand-powered lawn and garden sprayer made from durable polypropylene with a translucent tank for easy fluid monitoring. Featuring a clog-resistant SureSpray filter, an adjustable nozzle for versatile spray patterns, and an ergonomic pump handle, it offers extended reach with a 12-inch wand and 34-inch hose. Designed and supported in the USA, it’s perfect for watering, fertilizing, weed control, and pest management with reliable performance backed by a 1-year warranty.

Specifications

ASIN	B000E28UQU
Brand Name	CHAPIN
Color	Translucent White
Customer Reviews	4.4 4.4 out of 5 stars (82,774)
Global Trade Identification Number	00023883200008
Hose Length	34 Inches
Included Components	12-inch poly extension wand, 34-inch PVC hose, adjustable cone nozzle
Item Dimensions W x H	19.4W x 38.7H centimeters
Item Type Name	1 Gallon Lawn
Item Weight	907 g
Manufacturer	Chapin International
Manufacturer Part Number	20004
Manufacturer Warranty Description	Manufacturer
Material Type	Polypropylene (PP)
Maximum Pressure	60 Pound per Square Inch
Model Name	Chapin 20000, 1 Gallon Lawn, Garden and Multi-Purpose Sprayer with Adjustable Nozzle, Translucent White
Model Number	20004
Number of Items	1
Power Source	Hand Powered
Recommended Uses For Product	plant care, garden watering, weed control, pest control
Style Name	Sprayer with Adjustable Cone Nozzle
Tank Volume	1 Gallons
UPC	023883200008 023883200046
Unit Count	128 Milliliters

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₩161958

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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