Fernox 56603 Leak Sealer

Fernox 56603 Leak Sealer



  • Plugs small internal weeps and leaks in central heating systems
  • Ideal for reducing pressure loss from sealed systems
  • Saves time and money on draining down and repairing
  • Treats 100L system or up to 10 single radiators
  • Compatible with all metals and materials commonly used in central heating systems


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