Leak Sealer F4 500ml Brillant White With a reversible bi-directional body

With a reversible bi-directional body this thermostatic radiator valve is suitable for either horizontal or vertical installation

or using it for camping

Double Countersunk head reduces the likelihood of head shear and assists completion of countersinking

5:1 gear ratio

All surfaces to be coated should be clean

Leak Sealer F4 500ml Brillant White With a reversible bi-directional bodyLeak 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 leading water treatment chemical has been proven to