PE-RT female thread coupling for heating system 1.material:PERT(LG) 2.size:s16,s20,*1/2"; ... , light weight and ease of installation can reduce installation costs by as much as 50% over metal piping system Higher Flow Capacity, smooth ... normal conditions Recycled and Environment friendlyApplication: 1. Ground heating system, it is suitable for such heating as the living room, bedroom, public bathroom ...