Panametrics PT9-CFLP [PT9-CFLP] Pair of PT9-CFLP (4MHz) Transducers for -40 to 446°F with 0.5 to 2 Inch Pipes, Includes Clamping Fixture. Pair of small pipe CF-LP transducers for -40 to 230 deg C (-40 to 446 deg F) applications, 15 to 50mm (0.5 to 2 inch) pipe size (CF-LP-2EM-40HM-6, 4MHz), includes CF-LP clamping fixture.