This shrink end cap is designed for all quadruple and heat pump pipes where below ground or above ground subjected to moisture.
 
To prevent ingress of (ground) water, the EN 15632-3 standard prescribes the usage of shrink end caps to seal the
extremities of the non-bonded piping system at buried connections. Failing to do so involves a genuine damage
risk and automatically voids the system warranty.
Refer to technical spec for more info and installation instructions