Screw caps, red, for media bottles High temperature, 45mm thread, thermoplastic polyester. Fits series 1516, 1519 and 1520 caps, ideal for applications involving high temperatures. The PTFE faced sealing disc will resist attack from agressive chemicals. Both cap and disc will withstand hot air sterilisation up to 180°C. **The cap may discolour when used at the maximum temerature of 200°C, however,this does not affect performance.
