... Nominal outside diameter: 9.525mm Korea original binding DM pipe, food-grade material, owning NSF certification Specification:2points=1/4"=6 ... energy water purifier, PE purifying water pipe, quick connector, water purifying faucet, ultrafiltration water purifier, pipe line water purifier, water dispenser, ... Ho International Trade Department Korean original binding DM pe pipe/100% food-grade imported PE ...