Block for Visible,for 5ml reaction vials 12x20,3mm Back Catalog number: MU22-00-508JK Manufacturer: HANGZHOU MIU INSTRUMENTS Availability: 4 weeks Price on request - + Recommended H3022-E Incu-Shaker 20LR (Refrigerated) with non-slip rubber mat, 230V Price on request B1450-ISS UVC Indicator Stickers, pack of 40 Price on request BSW13 Block, 20 x 12mm or 13mm test tubes Price on request