Model # 147005

Internet #202530435

Store SKU #903427

DOWFROST South/Win RV Antifreeze with DOWFROST


South/Win RV Antifreeze with DOWFROST

$498 /each
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Product Overview

The South/Win, LTD. RV Antifreeze with DOWFROST can help protect your recreation vehicle (RV), boat, cottage or pool against extreme freezing temperatures. This ready-to-use winterizer is bio-friendly for safe and effective protection.

  • Protects from extreme freezing temperatures to -50 degrees Fahrenheit
  • Ready-to-use winterizer for recreation RVs, boats, cottages and more
  • Propylene glycol based formula
  • Bio-friendly formula provides safe and effective protection

Info & Guides

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Name Uni-Gard -50 Uni-Proof Anti-Freeze South/Win RV Antifreeze with DOWFROST 32 oz. Heavy Duty Oil Stabilizer 128 fl. oz. Antifreeze/Coolant
Brand DOWFROST Lucas Oil Prestone
Ratings (12) (6) (0) (1)
Fluid Type Antifreeze Antifreeze Lubricant Antifreeze
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Warranty / Certifications

Manufacturer Warranty
No Warranty Available.

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Customer Questions & Answers

Is this product safe for rv drinking water system.

Asked by: georgetown
Will this leave antifreeze taste? What is the low temperature will it protect?
Answered by: Ann
Date published: 2016-12-04

Will it evaporate in hot weather storage

Asked by: Mcfik
If you run it through your water lines its pretty much a closed system and will not evaporate. If poured into a toilet and left, any water or antifreeze could evaporate over time. .
Answered by: jsk404
Date published: 2017-07-11

Can I use the shower and the sink with this product in the system?

Asked by: angie
If you are referring to an RV..then NO. Having ANY water anywhere in the system will defeat the purpose.
Answered by: Bapcon
Date published: 2016-11-19

can i used this product in my sinks and toilets during the winter to prevent freezing when I turn off the heat in my summer home?

Asked by: sonny
Most definitely! This product works beautifully to protect your plumbing from cracking/rupturing to winterize an RV or summer home when it remains inactive during winter and cold weather. I have used the South/Win product at our homestead cabin in Wyoming(8,000 ft. and cold temperatures reach -32F) for four years now. We haven't had a single issue since using this product! It has been ideal! It's easy, cost effective and much better for the environment than the standard auto antifreeze. Just follow directions on bottle. You essentially put it in the back of toilet and then flush - so it fills the plumbing throughout the toilet. We completely drain our sinks(purge of all water entirely), so I haven't used it in that application. But what will work for a toilet will absolutely work for your sink. Just follow directions on the bottle - or call the 1-800 if you require more direction or reassurance....but this stuff truly works!
Answered by: sassy4savery
Date published: 2016-11-30
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Customer Reviews

South/Win RV Antifreeze with DOWFROST is rated 4.2 out of 5 by 6.
Rated 5 out of 5 by from Dowfrost antifreeze I have used this product in our 3 pools for the past few years now. A 70,000 gallon pool, 2,000 gallon spa and 2,000 gallon baby pool. I suck out the skimmer lines and water fill lines of as much water as I can get out and pour 2-3 gallons in each and never had a problem yet and our pools are 25yrs old concrete in-ground pools. I also use it to winterize the pump baskets and out door bathrooms. I live and work in NE Pennslyvania and this product stood up to the past Polar Vortex that stayed over much of the US.
Date published: 2014-09-02
Rated 5 out of 5 by from Good Stuff This product does what its supposed to, and cheaper than camper outlets.
Date published: 2017-01-03
Rated 4 out of 5 by from Does the job.... Does the job.
Date published: 2017-01-17
Rated 5 out of 5 by from Works GREAT& Better for Environment! I have used Dow Antifreeze for 5 years now to winterize our homestead cabin in Wyo(at altitude of 8,000-gets VERY cold out there). Has worked beautifully. Changed over from using standard antifreeze- as this is better for the Eco-System. I highly recommend this product. Haven't had any broken lines, toilet issues at all. And it's easy to do, very affordable. I'm a very satisfied customer.
Date published: 2016-08-03
Rated 1 out of 5 by from Do not recommend! The lable states that some slush may appear at approximately 0*F. I had an extra jug of this product on my patio and at 0*F it was nearly frozen solid -- way more that just some slush. I winterized my new RV with this and now I'm worried about the plumbing system in my RV. I tried to contact the manufacturer. The label has a website address which came up as "not found" on my web search.
Date published: 2013-12-10
Rated 5 out of 5 by from Great Product. Good price. Works as expected. Use this in my travel trailer. Have had no issues with it. Cheaper then buying from Camper Store.
Date published: 2013-11-03
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