P Townsed November 15, 2020 Will the Altecnic hygroscopic automatic air vent work on a domestic radiator if the system has already been treated with a leak sealant product such as Fernox F4 ReplyExpand Hide 2 Replies
Will the Altecnic hygroscopic automatic air vent work on a domestic radiator if the system has already been treated with a leak sealant product such as Fernox F4