Semi-screw with internal thread PP-R fi 25x1
Semi-screw with inner thread diameter fi 25x1 "mm, with Polish standard PN-EN ISO 15874-2:2005, made of polypropylene (PPR) in grey or white, is designed for the installation of central heating and transmission of hot and cold water inside the building. The semi-screw made of the highest quality plastics is durable and resistant to heat.