Will this help rid the damp moldy smell I’m getting from my unit?

Yes it did for my ac. I sprayed it on the inside coil and let it work and then sprayed it again to get it all clean. Then I used a fine spray of warm water from a pump sprayer to flush everything out. Don’t forget to clean your filter and wipe down all the vents as far as you can reach.. I used simple green for that.. no more musty mold smell

can this product be used to clean refrigerator coils?

The product contains water, this is not great when it splatters over the condenser motor. Use the condenser coil cleaner instead.

Why is the 4 pack so expensive compared to the 1 pack?

It has to do with shipping. One of these can go a certain way. but because these are aerosol cans, they have to get shipped differently. Steve

What's the difference between this (evap foam) and the similar looking evap fresh? it's for use in a mini-split (indoor unit).

The Nu-Calgon Evap Foam is for cleaning/rinsing the evaporator coil.

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417175 Evap Foam

Product ID: 293724869

Details

Brand
Nu-Calgon
Item form
Foam
Material features
Scented
Scent
Lemon
Specific uses for product
Evaporator

🍋pleasant lemon scent

🧴18 oz aerosol foam

⚙️corrosion inhibitors protect metals

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฿3530

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Description

🍋 Clean coils, fresh vibes — the pro’s choice for effortless maintenance!

FRESH LEMON FINISH - Deodorizes with a clean, uplifting lemon scent
METAL SAFE FORMULA - Fortified with corrosion inhibitors to protect your equipment
NO RINSE CONVENIENCE - Self-rinsing foam saves time and leaves no residue
EFFORTLESS DEEP CLEAN - Liquefies dirt, grease, and oil fast for spotless coils
NSF REGISTERED FOOD SAFE - Certified safe for use in food processing environments

Nu-Calgon 417175 Evap Foam is a powerful 18-ounce aerosol coil cleaner designed to quickly dissolve dirt, grease, and oil while protecting metal surfaces with corrosion inhibitors. Its fast-breaking, self-rinsing foam requires no rinsing, making maintenance efficient and residue-free. NSF registered for safe use in food processing areas, it leaves behind a refreshing lemon scent, combining industrial strength with a fresh finish.

Specifications

ASIN	B00DM8KQ3I
Brand	Nu-Calgon
Brand Name	Nu-Calgon
Cleaning Agent Formulation	Degreaser
Contains Liquid Contents?	Yes
Customer Reviews	4.6 out of 5 stars 4 Reviews
Item Form	Foam
Item Type Name	Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
Item Volume	18 Fluid Ounces
Item Weight	454 g
Item form	Foam
Item volume	18 Fluid Ounces
Manufacturer	Broan
Material Features	Scented
Material Type Free	Chlorine Free
Material features	Scented
Model Number	4171-75
Number of Items	1
Part Number	S1-417175
Scent	Lemon
Size	18 Ounce (Pack of 1)
Special Features	No Rinse, Residue Free
Specific Uses For Product	Evaporator coil
Specific uses for product	Evaporator coil
Surface Recommendation	Metal
UPC	094703464740 681001417105
Unit Count	510.29 Grams

Reviews

N**R

Very good evaporator coil cleaner

Useful and very good evaporator coil cleaner

7.06.2026

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฿3530

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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