The F 30 and F 75 water bottles were manufactured for the first time 45 years ago and despite remaining unchanged, they are still supplied today in a superior quality. These shapes have influenced the entire market. ZOONLAB water bottles are available with a silicone sealing ring. The water bottles are made of polycarbonate autoclavable to max. 121°C and of polysulfone, autoclavable to max. 134°C.