This category offers Fischer Refrigeration Pipe Clamps (model FRS K). The clamps are available in pipe sizes from 1/4" to 1" and fit M8 or M10 screws. Examples include FRS K 12/13, 15/13 (1/4"), 17‑18/13 (3/8"), 21‑22/13 (1/2"), 27‑28/13 (3/4") and 34‑35/13 (1").