Premium -100° Boiler System Antifreeze - Propylene Glycol Heating & Cooling Fluid - Made in USA - 1 Gallon (032700)

Great product I would highly recommend. I’ve purchased this product before and it worked just like it’s supposed to.

This was recommended by a fellow RVer so I gave it a go and so far so good. It's been a year and the product has worked well. Good value for the money.

This product is functioning well in the heating system of my camper. That's really amazing!

I gave this Starbrite Boiler Fluid only 2 Stars due to the poor shipping method. The product its self is an excellent product. Up Date 3/12/24. Purchased 3 more gallons for our Aqua Hot system. This time both of my orders shipped via UPS and The shipping time was excellent.

Great product, good price. Must be diluted

This is the proper coolant for the aqua hot 450

Works as it should.

I have a solar (water) in floor radiant heating system, and I live in SC. I only need protection down to 30 degrees, so I can DILUTE it according to the chart printed on the label. 2 gallons mixed with water gives me the protection I need! And it's EASY on my low power pumps systems as well!

good product

I have a combo boiler that heats my house and it had 13 year old glycol in it. I knew it had to be changed and this stuff seems to work well in it. I flushed the old stuff out and refilled with this and it's good to -20C. Would recommend.

Produits de bonne qualité.

Good but costly

Aqua Hot