22mm compression fitting blanking disc designed to seal unused ports on heating system manifolds and distribution blocks. Prevents water loss and maintains system pressure when connections are not in use. Compatible with standard 22mm compression fittings found on boiler heating circuits, radiator valves, and pipework assemblies. Brass construction ensures durability and corrosion resistance in wet environments. Essential spare for system maintenance, repairs, and reconfiguration work. Simply insert into the compression fitting and tighten the nut to create a watertight seal. Stock this component for emergency repairs and routine system modifications.
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