Test tube holder Back Catalog number: 10501 Availability: In the manufacturer's stock Price on request - + Recommended MR9600-690 Filter for Accuris Microplate Reader, 690 nm Price on request UV-9000S* UV-VIS Spectrophotometer, Double Beam, kinetics, m Price on request MR9600-620 Filter for Accuris Microplate Reader, 620 nm Price on request