Can this be applied with a garden type pump sprayer? Or does it need a special sprayer?

The Product is corrosive and a the SPRAYER NO 50P POLY (4770-0) should be used, however if it is for a one time application and you wash the sprayer thoroughly after use, you should be fine. please confirm that the plastic on the sprayer is durable and not susceptible to corrosive elements.

What are the main differences between nu-brite and cal-brite?

I believe Cal Brite can be used on an indoor evaporator cool, while any Brite can ONLY be used on the outdoor condenser.

How to get it to foam?

Put it in a spray bottle with water and spray with a thick setting, will self foam......caution use gloves eye pro.....it burns skin.....fully rinse after set time

According to the manufacturer: Indefinite

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Nu-Calgon 4291-08 Nu-Brite, 3.8l

Product ID: 269825533

Details

Brand
Nu-Calgon
Liquid volume
1 Gallons
Package information
Jug
UPC
681001429108
Vehicle service type
Car

⚡fast-acting foaming action

🌿biodegradable & USDA approved

🧴3.8L powerful cleaner

€ 414.97

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Description

✨ Brighten your coils, boost your efficiency! ⚡

POWERFUL 3 8 L CAPACITY - Generous volume for multiple deep cleans without constant refills.
SAFER THAN ACID CLEANERS - Alkaline-based formula delivers acid-level brightness without corrosive risks.
FOAMING ACTION THAT WORKS - Advanced surfactants penetrate and lift grime, pushing debris out effortlessly.
USDA AUTHORIZED FOR SAFETY - Approved for use in federally inspected meat and poultry facilities—trustworthy and reliable.
ECO FRIENDLY BIODEGRADABLE - Clean with confidence knowing it’s tough on grime but gentle on the planet.

Nu-Calgon 4291-08 Nu-Brite is a 3.8L alkaline-based, non-acidic cleaner designed to safely and effectively clean and brighten air-cooled condensers. Featuring powerful foaming detergents and chelants, it penetrates and dissolves grease and grime while being USDA authorized and biodegradable, making it the smart, eco-conscious choice for professional-grade HVAC maintenance.

Specifications

ASIN	B00ECV4D38
Automotive Fit Type	Universal Fit
Best Sellers Rank	#243,981 in Health ( See Top 100 in Health ) #3,171 in All-Purpose Household Cleaners
Brand Name	Nu-Calgon
Compatible with Vehicle Type	Car
Container Type	Jug
Item Weight	10 Pounds
Liquid Volume	1 Gallons
Manufacturer Part Number	4291-08
Model Number	429108
Number of Packs	1
Size	3.8l
UPC	681001429108 735090271435
Unit Count	128.5 Fluid Ounces

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 414.97

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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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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