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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🍋 Spray, foam, and freshen—your coils’ new best friend!

FRESH LEMON FINISH - Leaves coils deodorized with a crisp, clean lemon scent—goodbye musty odors
METAL SAFE FORMULA - Reinforced with corrosion inhibitors for worry-free use on all coil metals
SELF RINSING POWER - Foam dissolves and rinses away with natural condensation—no extra rinse required
EFFORTLESS DEEP CLEAN - Foam liquefies grease, dirt & oil fast—no scrubbing needed
NSF CERTIFIED FOR FOOD AREAS - Safe and approved for use in sensitive food processing environments

Nu-Calgon Evaporator Oil Cleaner 4171-75 is a high-performance 18oz aerosol foam designed to quickly dissolve dirt, grease, and oil on cooling and evaporator coils. Its corrosion-inhibiting formula is safe on metal surfaces and self-rinses with condensation, eliminating the need for manual rinsing. NSF registered for food processing use, it also deodorizes with a refreshing lemon scent, making it ideal for professional HVAC maintenance.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Product Dimensions	3.81 x 6.35 x 8.89 cm; 453.59 g
Specific Uses Keywords	Ideal for use on most coils, but particularly suited for cooling or evaporator coils
Scent Name	Lemon
Special Features	No rinsing

Nu-Calgon Evaporator Oil Cleaner 4171-75 Evap Foam No Rinse 18oz

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