Dear Listies, I would like to start using 250 mL tubs for DAB staining to get staining time standardized. Is there a source for large purchase of reagents at an affordable price? Cheers, Timothy L. Quinn Senior Lab Technician Missouri University at Kansas City Medical School- Med Lab 2411 Holmes Kansas City, MO 64108 816-235-1904 quinntl <@t> umkc.edu