Fernox Leak Sealer F4 Express 400 ml (aerosol) 62422 screwdriver High-quality

High-quality

Extremely long marking capacity

Manually feeds into drains without soiling clean basins and surfaces

Domed Bullet

Plumbing Supplies product description:

Fernox Leak Sealer F4 Express 400 ml (aerosol) 62422 screwdriver High-qualityFernox 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