Test Tube rack for 30 x 50ml tubes

Anti-corrosion gasket (New) (If replacing the old sealing ring, a separate spring needs to be placed for use with it. If the machine is equipped with a new sealing ring, no additional spring is needed)

Block for Visible, 13mm x 12, round bottom

1.5mL metaltube holder,use with MX-RL/RD-Pro