3M Tegaderm Alginate Dressings come in 2 version: High Integrity and High Gelling. Tegaderm Alginate High Integrity is designed to maintain its integrity when saturated, and is easily removed from most wounds in one piece with minimal gel residue. It is ideal for heavy exudating wounds. Tegaderm Alginate High Gelling becomes an amorphous gel-like mass when saturated. It is ideal for shallow, moist draining wounds. Each version comes in 2 sizes: 4" x 4" and 12" Rope. 3M #s 90112, 90120, 90212, and 90220.