QD Loop – Labor-Saving Dilution Device


QD Loop device is an all-in-one, sterile, rapid system for accurate and convenient volumetric dilutions. An accurate loop or dipper comes attached to a reservoir where patented Snap-Valve™ technology holds 1mL of Butterfields or Maximum Recovery Diluent (MRD) buffer. Simply break the Snap-Valve after a sample is collected, and immediately a dilution is ready that can be poured onto dry media film or streaked onto an agar plate.

QD Loop comes in 1:10, 1:100 or 1:1000 dilution formats. This all-in-one system enables quick and convenient dilutions. 250 per pack.

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  • No need to prepare dilution buffers
  • No need to pipette
  • Reduces labor and lab equipment expenses
  • Recyclable #7


  • Snap-Valve™ technology
  • Precisely calibrated dilution loops (honey dipper for large volume)
  • All-in-one system
  • Aseptically filled and gamma irradiated
  • Shelf life: 12 months at refrigerated temperatures (2-8 ºC)

Additional information

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Test Format

QD-Loop, 0.001ml sample to deliver a 1:1000 dilution, QD-Loop, 0.01ml sample to deliver a 1:100 dilution, QD-Loop, 0.1ml sample to deliver a 1:10 dilution



QD-Loop Instructions

Safety Data Sheet