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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20000 Poly Lawn and Garden Sprayer for Fertilizer, Herbicides and Pesticides, 1 Gallon

Product ID: 393643562

Details

Brand
CHAPIN
Colour
White
Material
Plastic
Recommended Uses For Product
Fertilizing
Tank Volume
1 Gallons

💧1 Gallon translucent tank

📏34-inch PVC hose + 12-inch wand

🛠️Anti-clog SureSpray® filter

€ 169.67

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Description

🌿 Spray Smart, Grow Strong — Your Garden’s New MVP!

SPILL FREE FILLING - Funnel-top design minimizes mess, making refills quick and clean—no more wasted time or product.
EFFORTLESS MAINTENANCE - In-tank anti-clog filter keeps debris out, ensuring uninterrupted, reliable spraying sessions.
ERGONOMIC LIGHTWEIGHT - Comfortable pump handle and just 2 lbs for easy maneuvering across your garden or farm.
PRECISION SPRAY CONTROL - Adjustable poly cone nozzle for tailored shower or stream flow—perfect for every plant and pest.
PROUDLY USA MADE QUALITY - Crafted with global materials and backed by a 1-year warranty plus dedicated US-based support.

The Chapin 20000 Poly Lawn and Garden Sprayer is a versatile 1-gallon pump sprayer designed for fertilizing, pest control, and weed management. Featuring a translucent polyethylene tank for easy fluid monitoring, a clog-resistant SureSpray® filter, and an adjustable nozzle for precise application, it combines ergonomic comfort with durable, rust-free materials. With a 34-inch hose and 12-inch wand, it offers extended reach for all your lawn and garden needs. Proudly made in the USA and supported by a 1-year warranty, this sprayer is a reliable, professional-grade tool for millennial managers who demand efficiency and quality in their green spaces.

Specifications

ASIN	B000E28UQU
Best Sellers Rank	#113,232 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #1,000 in Sprayers
Brand	CHAPIN
Colour	White
Country of Publication	USA
Customer Reviews	4.4 4.4 out of 5 stars (79,768)
Enclosure Material	Plastic
Global Trade Identification Number	00023883200008
Hose Length	34 Inches
Included Components	Poly Extension Wand, PVC Hose, Adjustable Cone Nozzle, Ergonomic Pump Handle
Item Dimensions W x H	19.4W x 38.7H Centimeters
Item Weight	2 Pounds
Manufacturer	CHAPIN
Manufacturer Part Number	20004
Maximum Pressure	60 Pound per Square Inch
Model Name	Lawn and Garden Sprayer
Model Number	20004
Number of Items	1
Power Source	Hand Powered
Recommended Uses For Product	Fertilizing, Pest Management, Watering, Weed Control
Style	Standard Packaging
Tank Volume	1 Gallons
UPC	023883200008 023883200046
Unit Count	128.0 Fluid Ounces

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€ 169.67

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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