Fernox Central Heating Leak Sealer F4 Express, 265mL

• Quick and convenient - doses in 30 seconds. Simple to use with no mess.
• Added via a radiator adapter or filling loop supplied.
• Saves time and money on draining down and repairing.
• Seeks out and seals most weeps and leaks.
• 100% recyclable can.
• Non-toxic, environmentally friendly formulation, 265mL.

Breathe easy with the PureFilters Promise

PureFilters was founded with one mission - to help Canadians enjoy clean and healthy indoor air at an affordable price. From quality products to hassle-free returns, and reliable customer service -  our team at PureFilters goes above and beyond to help you enjoy quality indoor air. 

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