“Useful addition to get to be on safe side but it’ll be a long time before we know if it’s done it’s job.”
“Arrived with the rad and was more then enough for this size of rad.”
“Im still not check because not ready to install”
“Does the job, clear instructions and easy to fill. Can recommend.”
“Easy to use, no concerns”
“Good product in very good price”
“Excellent service , very pleased with product .”