Fernox Leak Sealer F4 Express 400 ml (aerosol) 62422 screwdriver Plumbing Supplies product description:

Plumbing Supplies product description:

The TF1 Total Filter has been designed to ensure there is minimal pressure loss whilst continuing to maintain a high collection efficiency

Extremely long marking capacity

5V AAA batteries (not supplied)

Fernox Leak Sealer F4 Express 400 ml (aerosol) 62422 screwdriver Plumbing Supplies product description:Fernox Leak Sealer F4 Express 400 ml (aerosol) 62422 Leak Sealer F4 is a internal leak sealer developed for use throughout a central heating system to seal small, inaccessible leaks and weeps which may cause pressure loss and boiler breakdown. Once dispersed within the system, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole. Effective within 1 24 hours after application, the unique sealing efficiency of this market