нЦ 15 3/4" brass normal (wide) spray starting at 7 psi flow pressure SpeedClean anti-lime system 20ЊБ swivel ball joint (Њ± 20ЊБ) 1/2" NPT Female Threads This shower head should only be used in conjunction with shower arm 28 982 or 28 497 suitable for instantaneous heater GROHE StarLightЊ¬ chrome finish