Hygiemix T1 Screw In Mophead Blue The Hygiemix T1 Screw-In Mophead (Blue, ~250 g) is a professional colour-coded replacement mop head designed for efficient floor cleaning in commercial, catering, industrial, and general janitorial environments. It features a T1 screw-in socket fitting that securely mates with compatible Hygiemix/T1 threaded handles (e.g., Abbey Hygiene or other T1 handles) — letting you replace mop heads quickly and hygienically without touching the soiled yarn.