$3987
Pay $14.87 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- Protects heating systems against freezing and corrosion
- Odorless liquid is non-flammable and non-toxic
- Solution is pre-mixed with water and ready for direct use
- View More Details
Product Details
Hercules Cryo-tek
Hercules Cryo-tek products are all you need to set, clean and maintain a boiler system. These products are formulated for high performance and developed with both the user and the environment in mind. Cryo-Tek products keep systems clean and operating while improving heat transfer and minimizing wear to moving parts. Choose from a variety of Cryo-tek products to maintain your heating system. Plumbers have come to trust the Hercules offering to provide the highest quality of plumbing products.Choose From a Variety of Cryo-tek Products
System Repair
Hercules Boiler and Heating System Repair Products are formulated to repair steam, hot water and hydronic boilers. These repair products seal and repair cracks or leaks.
System Cleaners
Hercules system cleaners are crucial for maintaining a system. It is recommended that any system, whether new or existing, be thoroughly cleaned before using Cryo-Tek products. Any system contaminated with dirt and other materials reduces efficiency and wears the system prematurely.
Anti-Freeze
Freeze protection is important in all systems. Water can freeze at 32 degrees and can cause pipes to burst if there is a power outage. Adding an inhibited virgin propylene glycol antifreeze to a boiler can prevent those problems and provides freeze protection. Installing inhibited virgin propylene glycol into the hydronic system is also a requirement to maintain warranty by leading boiler manufacturers.
System Testing
Without proper maintenance, boilers corrode and become less efficient, leading to additional service calls and a shorter life span for the appliance. Therefore, regular system testing is crucial to maintaining a long-lasting system. Hercules offers disposable test strips and a refractometer to maintain a balanced system.Keep Systems Clean and Operating Efficiently
Plumbers have come to trust the Hercules offering to provide the highest quality of plumbing products.
Hercules Cryo-Tek Original Antifreeze is a ready to use 45% Virgin Propylene Glycol formula. It's designed for hydronic heating and cooling closed loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions.
- Blend of 45 percent virgin propylene glycol
- Triple protection inhibitor stabilizes pH to prevent corrosion, chelates, hard water minerals, and inhibit scale and sediment formation
- Not for use with galvanized, CPVC or aluminum
- Used in systems fabricated with metal, plastics and rubber piping, fittings, seals and other parts
- For heating systems requiring freeze protection as well as corrosion prevention
- Cryo-Tek is "GRAS" (Generally Recognized As Safe) for incidental contact with food
- Return Policy
Additional Resources
From the Manufacturer
Specifications
Questions & Answers
20Questions
Q:Can this be used to un freeze abs pipe to dry well if not then what will work
by|Dec 20, 2022
1 Answer
Q:Can this be used in a beer line chiller system
by|Jul 1, 2022
1 Answer
Q:I’m looking at the home depot page and I am assuming this is premixed for -27 f? So I could just put this in straight?
by|Apr 15, 2020
3 Answers
Q:Can this be used for our driveway snow melt system? There is a tank in the storage closet that ju...
by|Nov 19, 2019
2 Answers
Showing 1-4 of 20
Mar 22, 2022
by
Feb 22, 2022
by
Nov 9, 2021
by
Mar 18, 2021
Met my needs for radiant floor heating....
Met my needs for radiant floor heating.
by
Feb 17, 2021
by
Jan 9, 2021
by
Nov 11, 2020
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by
Nov 11, 2020
The only problem I had was while I was at...
The only problem I had was while I was at the store none of the 5 employees I spoke with were able to find the product. I had to return to the store after I was notified an hour after I left that the product was found. Cost me time and money
by
Oct 24, 2020
Cryo- tek part no. 35253
I bought 4 of these going by the picture showing Cryo-tek AG which is 95% antifreeze. what I got was part no. 35253 which is premixed 45%antifreeze as does the description. The picture shows Cryo-tek AG and the correct part no.35282. When I check my account and purchases, it lists that I bought Cryo-tek AG oatey part no. 35253 and a picture of Cryo-tek AG. so check the bottle, home depot pictures and part numbers are mixed up. if you want actual concentrated 95% polypropylene gycol get the bottle that says AG otherwise you will get pre-mixed product and not as strong.
by
Aug 14, 2020
It does what it supposed to do: it lowers the freezing point of coolant and prevents corrosion. B...
It does what it supposed to do: it lowers the freezing point of coolant and prevents corrosion. Because it's based upon propylene glycol, it has the added benefits of being non-toxic and provides lubrication for pumps.
by
Frequently Bought Together
Price:
$3987
Explore More on homedepot.com
Furniture
Hardware
Heating, Venting & Cooling
Kitchen
