Micro Thumb tubes *100 Back Catalog number: 5054P-6 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 5610101490 Copper-Cu, Coded HC Lamp, Certified 1/pk 784,69 € 5610101000 Calcium - Ca, Coded HC Lamp, 1/pk 604,38 € 5610135300 As-Cu-Fe, Uncoded UltrAA HC Lamp, 1/pk 1 010,32 €