Extr Salts 4g MS+1g NaCl 50mL PK50 Back Catalog number: 5601 Availability: In the manufacturer's stock Price on request - + Recommended 306 CYLINDRICAL TEST TUBES PP, 104x30mm Price on request 88303 CYLINDRICAL TEST TUBE WITH SCREW CAP PP, 15ml (1. Price on request 88304 CYLINDRICAL STERILE TEST TUBES WITH SCREW CAP PP, Price on request