Comparison : Item # DPDS-250, 32 Millimeter (mm) Diameter Open Sampler for Liquid (DPDS-250)
Item # DPBM 250, 57 Millimeter (mm) Diameter Open Sampler for Liquid (DPBM 250)
Item # DPBM 500, 57 Millimeter (mm) Diameter Open Sampler for Liquid (DPBM 500)
Item # DPTK 500, 57 Millimeter (mm) Diameter Open Sampler for Liquid (DPBM 500)
Item # DPZK, 88 Millimeter (mm) Diameter Open Sampler for Liquid (DPZK)