SY SP 500 Sparger The sparger is used to introduce gases into the reaction solution of the EasySyn reactor vessels (volume: 500 ml). The P1 frit at the outlet of the sparger finely distributes the introduced gas. Suitable for NS 14/23 ground joint. Suitable for EasySyn reactor vessels with a total volume of 500 ml (SY 500 D, SY 500). Attention: To avoid overpressure, the reactor vessel must not be completely closed when introducing gas.