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Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.

4.6 4.6 out of 5 stars 12,083 ratings
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1.12 Pound (Pack of 1)

Purchase options and add-ons

Brand Nu-Calgon
Item Form Foam
Scent Lemon
Specific Uses For Product Evaporator coil
Material Feature Scented

About this item

  • Evap Foam will liquefy dirt, grease, oil, and other residues quickly and easily
  • Since it is fortified with corrosion inhibitors, it is safe for use on metals and other materials
  • The product’s fast-breaking foam is completely self-rinsing
  • Spray Evap Foam on the coil and the foam will wash the emulsified matter off
  • The aerosol product is NSF registered for use as a coil cleaner in and around food processing areas, and helps leave the area deodorized with a pleasant lemon scent

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From the manufacturer

Evap Foam No Rinse

Evap Foam 'no rinse' is a high performance, heavy duty detergent, specifically formulated with special surfactants and alkaline cleaners that have been developed into a foaming, no-rinse product. The aerosol product can be sprayed either right side up or upside down, and is ideal for use on most coils, but particularly suited for cooling or evaporator coils.

Evap Foam will liquefy dirt, grease, oil, and other residues quickly and easily. Since it is fortified with corrosion inhibitors, it is safe for use on metals and other materials. The product’s fast-breaking foam is completely self-rinsing. Simply spray Evap Foam on the coil and the foam will wash the emulsified matter off. The aerosol product is NSF registered for use as a coil cleaner in and around food processing areas, and helps leave the area deodorized with a pleasant lemon scent.

Product Description

Product Description

Evap Foam No Rinse is a high performance, heavy duty detergent, specifically formulated and packaged into a convenient 18-ounce aerosol can. Made with special surfactants and alkaline cleaner, Evap Foam is ideal for use on most coils, but particularly suited for use on cooling or evaporator coils. Able to liquefy dirt, grease, oil and other residues quickly and easily, this coil cleaner is also fortified with corrosion inhibitors, making it safe for use on metals and other materials. The product's fast-breaking, clinging foam is completely self-rinsing on condensate-producing coils. Simply spray Evap Foam on the coil and the condensate produced during cooling will wash the emulsified matter off the coil. The aerosol product is NSF registered for use as a coil cleaner in and around food processing areas. A pleasant lemon scent helps leave the area deodorized after use.

From the Manufacturer

This is a genuine replacement part. The model number and name for the following item is: Nu-Calgon 417175 Evap Foam.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.5 x 2.5 x 3.5 inches; 1 Pounds
  • Item model number ‏ : ‎ 4171-75
  • Date First Available ‏ : ‎ February 21, 2010
  • Manufacturer ‏ : ‎ Broan
  • ASIN ‏ : ‎ B00DM8KQ3I
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.6 4.6 out of 5 stars 12,083 ratings

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Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
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Price$18.29$37.54$13.66$33.09$59.95$26.09
Delivery
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Customer Ratings
Easy to use
4.5
4.5
4.7
4.8
4.4
Value for money
4.2
4.1
4.4
4.6
3.9
Sold By
Amazon.com
Beenimax
Amazon.com
Essential Values
UDirect
Amazon.com
form
Foam
Foam
Product
Liquid
Foam, Spray
Spray
scent
Lemon
Lemon
Unscented
Fresh,Green,No Free
surface suggestion
Metal
Glass
Aluminum
weight
1 pounds
1 pounds
8.4 pounds
volume
18 fluid ounces
18 fluid ounces
470 milliliters
128 fluid ounces
2 quarts
1 gallons

Important information

Ingredients

Water, Diethylene Glycol Monothyl Ether, 2-Butoxyethanol, Tetrasidium Salt of EDTA, Liquefied Petroleum

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
12,083 global ratings

Customers say

Customers like the scent, ease of use, and cooling of the mechanical components. They mention that it has a pleasant scent and that it's a great tool for the DIY. They are also satisfied with performance. However, some customers have reported issues with the spray. Opinions are mixed on foam, value, and quality.

AI-generated from the text of customer reviews

896 customers mention761 positive135 negative

Customers like the performance of the foam cleaner. They say it dissolves dirt instantly, makes cleaning inside coils a snap, and removes dust. The dirty foam then drains away cleanly, and the collected water does not look too dirty.

"...Effective Cleaning: The foam visibly dissolved dirt, grime, and dust on the coil...." Read more

"...is an effective product. Removed disgusting gelatinous residue and dirt from both the coils and pan with a minimum of brushing and rinsing...." Read more

"...The collected water did not look too dirty. I could probably go without this cleaner with the same effect." Read more

"...The stale smell was completely gone. I am very pleased with the effectiveness of this product." Read more

255 customers mention204 positive51 negative

Customers like the scent of the mechanical components. They mention it has a pleasant scent and the air quality is improved.

"...Pleasant Scent: While I did choose to follow up with a light rinse using a spray bottle, I appreciate that the product has a mild lemon scent...." Read more

"...It has a very pleasant lemon scent. The stale smell was completely gone. I am very pleased with the effectiveness of this product." Read more

"...This might have a very pleasant scent, but you still shouldn't be breathing it in...." Read more

"Cleaned the evaporator coil in my AC unit, semed to work ok, and smells nice too." Read more

204 customers mention199 positive5 negative

Customers find the mechanical components easy to use. They mention that the spray is easy to apply and does a great job cleaning the HVAC evaporator coil. Some say that the first application is amazing and that it is a painless service. Overall, most are happy with the product and recommend it to others.

"...Here's what I liked:Convenient and Easy to Use: The no-rinse formula is a major plus...." Read more

"...can fix that generation” 😃 On a scale of 1 -10 this is a relatively easy albeit dirty job and rate it 3 out of 10...." Read more

"...The spray was easy to use and the can works well at an angle...." Read more

"easy to use, cleaned coils well, no fuss. Love it" Read more

35 customers mention29 positive6 negative

Customers like the cooling of the mechanical components. They mention that it works, their ACs are blowing cool again, and it lowers the room temperature quicker. It also improves air flow, and the dirt dissolves away, making the air conditioning cleaner and fresh.

"...I chose to foam my AC 4 times because it was so filthy. Now the unit cools better and no longer rattles or leaks. The stuff even smells nice, too...." Read more

"...After cleaning the unit the RV seemed to cool down a little faster and the unit ran less...." Read more

"...job and left both my air conditioners clean/fresh and blowing air like they were new ( each is 10 years old)...." Read more

"...Dried the unit out and it really cooled well. One can of this product was very useful in removing over 30 years worth of dirt." Read more

95 customers mention64 positive31 negative

Customers are mixed about the value of the mechanical components. Some mention that it's a cost effective DIY maintenance project, while others say that it may have received a bad can or that the spray is rather expensive.

"...Cost effective DIY maintenance project that was about $40 in total for one brush and two cans of Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator..." Read more

"...Well worth the price, I just wished the maintenance people knew about this so they could have paid for it and done the work...." Read more

"...The spray is rather expensive. Using the spray is easy. Shake the can, remove the lid and soak the coils you want to clean...." Read more

"Great price," Read more

63 customers mention20 positive43 negative

Customers are mixed about the foam. Some mention that it has the advantage of not foaming up as soon as it is out of the nozzle, the foam action is very nice, and it adds a mild white tint to the rinse water. However, others say that it didn't foam at all, it came out a little uneven, and the hose keeps clogging with the foam bunched up at the tip.

"...harsh lemon smell (not bad just not like a air freshener) and it does not foam up like you think. It's more of a creeping foam than a soapy one...." Read more

"...It works perfectly. It also has the advantage of not foaming up as soon as it is out of the nozzle...." Read more

"I shake well but still generate little foam, if to clean AC would recommend buy at least two" Read more

"...The foam came out a little uneven but after a couple coats every thing was clean." Read more

35 customers mention20 positive15 negative

Customers are mixed about the quality of the mechanical components. Some mention that it's pleasant, works well, and does not suffocate. Others say that it is a pretty weak product that does not last very long and may cause premature failures.

"...It's pleasant, but keep in mind you'll probably have to mix a drink for your significant other after use." Read more

"...or household cleaners on your coils as this will corrode and cause premature failures." Read more

"...No rinsing was required, as advertised. The smell was pleasant and not strong. My only complaint is it takes more than you think...." Read more

"...Poor quality control from the manufacturer, if so." Read more

78 customers mention21 positive57 negative

Customers have negative things to say about the spray. They mention that it didn't spray at all, there wasn't a standard spray, and some spray bounced off. The foam came out as a mist rather than a single stream. The evaporator still got clogged, and the nozzle definitely does not spray upside down.

"Works, I clean my Goodman 3-ton AC unit each Spring. The spray is not the best generally uneven application...." Read more

"Works okay, but the nozzle keeps clogging with bunched up foaming up at the tip...." Read more

"...The space was very limited for a big 18 oz can, but the spray has a good reach and I was able to cover the fins with foam from the outside...." Read more

"...Also the spray wasnt as strong as I would like...." Read more

Effective Product: Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
5 Stars
Effective Product: Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
Able DIY homeowner that is from the “I can fix that generation” 😃 On a scale of 1 -10 this is a relatively easy albeit dirty job and rate it 3 out of 10. Read and followed directions and safety precautions listed on the can of the cleaner. Researched HVAC related videos and articles concerning the cleaning of evaporator coils and followed the safety guidelines. Used two full cans of cleaner on my indoor evaporator coils that were dirty and draining inefficiently. Sprayed, waited and brushed with a coil brush three times on the inside and outside of the evaporator coils. Flushed coils and condensation tray with warm water by poking a hole in the cap of a 16 oz water bottle. Look at the photos that accompany this review and see that the Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz. is an effective product. Removed disgusting gelatinous residue and dirt from both the coils and pan with a minimum of brushing and rinsing. Probably could just spray on and allow condensation to remove the cleaner and residue but opted to brush and rinse. Cost effective DIY maintenance project that was about $40 in total for one brush and two cans of Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
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Top reviews from the United States

Reviewed in the United States on February 29, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase
Reviewed in the United States on January 16, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase
Customer image
5.0 out of 5 stars Effective Product: Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
Reviewed in the United States on January 16, 2024
Able DIY homeowner that is from the “I can fix that generation” 😃 On a scale of 1 -10 this is a relatively easy albeit dirty job and rate it 3 out of 10. Read and followed directions and safety precautions listed on the can of the cleaner. Researched HVAC related videos and articles concerning the cleaning of evaporator coils and followed the safety guidelines. Used two full cans of cleaner on my indoor evaporator coils that were dirty and draining inefficiently. Sprayed, waited and brushed with a coil brush three times on the inside and outside of the evaporator coils. Flushed coils and condensation tray with warm water by poking a hole in the cap of a 16 oz water bottle. Look at the photos that accompany this review and see that the Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz. is an effective product. Removed disgusting gelatinous residue and dirt from both the coils and pan with a minimum of brushing and rinsing. Probably could just spray on and allow condensation to remove the cleaner and residue but opted to brush and rinse. Cost effective DIY maintenance project that was about $40 in total for one brush and two cans of Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, 18 oz.
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Reviewed in the United States on November 19, 2023
Size: 1.12 Pound (Pack of 1)Verified Purchase
One person found this helpful
Report
Reviewed in the United States on March 9, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase
Reviewed in the United States on November 22, 2023
Size: 1.12 Pound (Pack of 1)Verified Purchase
Customer image
5.0 out of 5 stars Easy to use and my 8 year old condenser coils look like new again.
Reviewed in the United States on November 22, 2023
The "N" shaped condenser coils in my 8 year old Bryant furnace / HVAC unit seemed to be relatively clean as shown in the "before" video that I uploaded. Except for some built up dust and debris in the corner of the top coils.

I still wanted to clean the coils since I already had the covers off. The spray was easy to use and the can works well at an angle.

I allowed the foam to work for about 15 minutes and just about all of the debris dripped away.

Even though this is a "no rinse" cleaner, I still used a water bottle sprayer filled with distilled water to rinse off the coils.

Be sure to wear gloves, protective eye wear and a mask. This might have a very pleasant scent, but you still shouldn't be breathing it in.

If you have a Bryant furnace, the outer cover is held in place by four 5/16" screws. They might be hidden under some caulk / sealant that you have to scrape off. The inner "A" shaped coil covers are also held in place by 5/16" screws.

Don't forget to turn off the A/C system, unplug the furnace and/or turn off the circuit breaker before you open up the unit.

Overall, I'm very pleased with this purchase. I could have just used half of the can, but I used the entire can just to make sure every inch of the "N" coil was sparkling clean.

I don't think I'll need to do this procedure again for at least a few years since our A/C filters are ceiling mounted and I change the two filters every month.
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4 people found this helpful
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Reviewed in the United States on February 21, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase
Reviewed in the United States on March 8, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase
Reviewed in the United States on March 3, 2024
Size: 1.12 Pound (Pack of 1)Verified Purchase

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