Product material Stainless steel For air conditioning cold water without antifreeze agent For air conditioning cold water with antifreeze agent For cooling and heating water without antifreeze agent For cooling and heating water with antifreeze agent For compressed air (oil purity class 0–3) For district heating water ≤ 120 °C For negative pressure For inert gases (e.g. nitrogen) For technical building systems and industry Not admissible for drinking water installations Pressing indicator Leaky if unpressed Union nut made of brass Seal ring made of CIIR, black Flat gasket made of EPDM Valid for system: Geberit Mapress Therm DN: 12 / 20 d, ø: 15 mm G: 3/4 ″ di, ø: 13 mm L: 3.7 cm Z: 1.1 cm