QD-Loop Labor-Saving Dilution Device


D-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.


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


  • 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)

For more information, please see the Product BrochureInstructions and Safety Data Sheet

Manufacturer : Hygiena LLC

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Cat.#DescriptionMfg.#PriceQuantityEstimated Availability
622-700-02100 µl sample pickupQD0010$368.32 PK / 250  
Ships within 2 weeks
622-700-0410 µl sample pickupQD0100$368.32 PK / 250  
Ships within 2 weeks
622-700-061 µl sample pickupQD1000$368.32 PK / 250  
Ships within 2 weeks


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