Bio-Rad Ctlg # 1703933 foam pads Pkg of 4 Mini T/B
Use these foam pads for wet/tank blotting with the Mini Trans-Blot Cell. Blot proteins or nucleic acids from either agarose or acrylamide gels. The Mini Trans-Blot Module accommodates two cassettes and the tank is interchangeable with the Mini-PROTEAN® Tetra System.
Source Bio-Rad Website