At LPS, we understand the importance of reliable and affordable microbiological supply solutions for our customers in varied environments, from research laboratories to medical laboratories and beyond. We provide procurement of a wide range of products, including dehydrated and prepared media, both bottled and plated, organisms, and supplies such as inoculating loops and needles.

Please also see our collection of other Life Science products for a complete offering of whatever you may need for your important work.  We're always here if you have questions or need assistance - email or call us!

When ordering media, decide between prepared and dehydrated forms. Prepared plates (15 x 100 mm, plus 15 x 65 mm contact plates for surface monitoring), tubes and bottled broths save preparation time but have shorter shelf lives and usually need refrigeration, so order quantities you can use before the expiration date. Dehydrated media store longer but must be weighed, prepared and sterilized in house. Look for USP-designated media when your testing follows compendial methods, and pair them with quality control organisms such as ATCC-derived strains in DuoPak format. Sterile plastic inoculating loops come in calibrated volumes such as 10 µl.

Microbiology: common questions

What is a bacterial freezing kit?

A bacterial freezing or preservation kit usually contains cryovials prefilled with a cryoprotective broth, often with porous beads. You add a fresh culture, let the organisms attach to the beads, remove the excess liquid and freeze the vial, typically at -70°C or colder. Later, a single bead can be removed to start a culture without thawing the whole vial. Follow the kit maker's instructions for your organism.

What are contact plates used for?

Contact plates are small plates filled so the agar forms a raised, convex surface. They are pressed directly onto flat surfaces such as benches, equipment or gloves to sample microorganisms for environmental monitoring. Media for this use often contain neutralizers, such as lecithin and polysorbate (Tween), to counteract disinfectant residues picked up from the surface.

What are dilution blanks?

Dilution blanks are tubes or bottles prefilled with a measured volume of sterile diluent, such as buffered water or peptone water. They are used for serial dilutions of samples before plating or counting, so each step has an accurate, sterile volume without preparing and sterilizing the diluent in house.

Can prepared media be returned?

Returns are accepted within 30 days by mail, with the customer paying return shipping, but refrigerated or frozen items, sterile items and hazardous items cannot be returned. Most prepared plates and tubes fall into those groups, so check quantities and expiration needs before ordering. Many items ship directly from the manufacturer, so lead times vary by item.

Microbiology

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  1. Sabdex Agar w/Chloram.; HDx, plstc HardyFlask
    SKU: X41-PK
    Manufacturer: Hardy Diagnostics
    Sabdex (Sabouraud Dextrose) Agar with Chloramphenicol, 12ml, 50ml plastic HardyFlask™, order by the package of 20, by Hardy Diagnostics Sabouraud Dextrose Agar with Chloramphenicol is recommended for the selective isolation of fungi and yeasts from clinical and nonclinical specimens. HardyFlask™ Features: Lightweight For reduced shipping cost and less chance of breakage. Stackable For increased conservation of space, both in incubator and refrigerator. No special storage racks are needed. Interlocking For increased stability when incubating and transporting. Large surface area For the inoculum. Almost double the area! better isolation of colonies. Slanted neck Facilitates easy inoculation of the flat media surface. Improved clarity For better visibility of the growing culture, both front and back. Comparable to: BD 221825 (20 per PK)
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    was $116.47 Special Price $93.42
  2. Wallenstein Slant; HDx, 20x125mm tube R
    SKU: C61-PK
    Manufacturer: Hardy Diagnostics
    For the cultivation of Mycobacterium spp. especially Mycobacteria avium complex (20 per PK)
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    was $99.20 Special Price $79.57
  3. Potato Dextrose,USP,200ml; HDx, 8oz glass bottle
    SKU: U294-PK
    Manufacturer: Hardy Diagnostics
    Potato Dextrose Agar, USP, 200ml, 8 ounce glass bottle, order by the package of 12, by Hardy Diagnostics MINIMUM ORDER: 3 PACKS For the cultivation of yeasts and molds. (12 per PK)
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    was $195.18 Special Price $156.56
  4. StrepPro C Grouping Latex, HDx, 60 tests EA 1
    Manufacturer: Hardy Diagnostics
    StrepPRO™ Grouping Reagent C, for the rapid latex agglutination test, 60 tests, by Hardy Diagnostics Grouping reagent for the rapid latex agglutination test for the identification of streptococcal groups. Comparable to: Remel R30950801 (1 per EA)
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    was $125.61 Special Price $100.74
  5. Peptic Digest Agar w/F&N; HDx, 15x100mm plate R
    SKU: G141-PK
    Manufacturer: Hardy Diagnostics
    For the selective isolation and cultivation of Haemophilus spp. (10 per PK)
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    was $75.51 Special Price $60.56
  6. Letheen Broth, 10ml; HDx, 16x125mm tube R
    SKU: K106-PK
    Manufacturer: Hardy Diagnostics
    For use in determining bactericidal activity of quaternary ammonium compounds. (20 per PK)
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    was $52.44 Special Price $42.06
  7. Mannitol YEP Agar, pH 6.2; HDx,15x100mm plt 10/pk *R
    SKU: G39-PK
    Manufacturer: Hardy Diagnostics
    MINIMUM ORDER: 10 PACKS For use in the cultivation and enumeration of microorganisms and growth promotion testing for aloe products. (10 per PK)
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    was $145.51 Special Price $116.71
  8. BHI Agar w/Bld, Chlr&Gent; HDx, plstc HardyFlask R
    SKU: X14-PK
    Manufacturer: Hardy Diagnostics
    BHI (Brain Heart Infusion) Agar with Blood, Chloramphenicol and Gentamicin, plastic HardyFlask™, order by the package of 20, by Hardy Diagnostics (Brain Heart Infusion Agar with 5% Sheep Blood, Chloramphenicol, and Gentamicin) For the selective isolation of pathogenic fungi. HardyFlask™ Features: Lightweight For reduced shipping cost and less chance of breakage. Stackable For increased conservation of space, both in incubator and refrigerator. No special storage racks are needed. Interlocking For increased stability when incubating and transporting. Large surface area For the inoculum. Almost double the area! better isolation of colonies. Slanted neck Facilitates easy inoculation of the flat media surface. Improved clarity For better visibility of the growing culture, both front and back. Comparable to: BD 296358 (20 per PK)
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    was $112.31 Special Price $90.08
  9. Inhibitory Mold Ag w/Gent; HDx,20x125 tube slant R
    SKU: L49-PK
    Manufacturer: Hardy Diagnostics
    Inhibitory Mold Agar with Gentamicin Slant, 10ml, 20x125mm tube, order by the package of 20, by Hardy Diagnostics (Inhibitory Mold Agar with Gentamicin) For the selective isolation of pathogenic fungi. (20 per PK)
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    was $81.26 Special Price $65.17
  10. BHI Broth w/Ciprofloxacin HDx,16x100mm tb PK20
    SKU: K258-PK
    Manufacturer: Hardy Diagnostics
    BHI (Brain Heart Infusion) Broth with Ciprofloxacin, 10µg/ml, 13x100mm glass, 5ml, optically clear, glass tube, order by the package of 20, by Hardy Diagnostics For use as a selective pre-enrichment broth for the cultivation of ciprofloxacin-resistant E. coli and other gram negative rods. Urologists use this as a rectal screening medium before they perform a prostate gland biopsy. The biopsy procedure is known for introducing resistant organisms into the bloodstream from the rectum. This media will allow urologists to screen the men first to see if they will be at risk of a “difficult to treat” infection or septicemia. To be used with plated media; either G358 or G258. (20 per PK)
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    was $94.29 Special Price $75.63
  11. TAT Broth, 490ml; HDx, 1000mL PP Btl 10/pk
    SKU: U318-PK
    Manufacturer: Hardy Diagnostics
    TAT Broth, 490ml fill, 1 liter polypropylene bottle, order by the package of 10, by Hardy Diagnostics MINIMUM ORDER: 10 PACKS For the detection of microorganisms from topical drugs, cosmetics, and other viscous materials. (10 per PK)
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    was $257.73 Special Price $206.72
  12. Control Slde,Crypto MBL AcidFastControl PK10
    Manufacturer: Hardy Diagnostics
    Control Slide, Crypto MBL, 10/bx, AcidFastControl (1 per EA)
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    was $156.07 Special Price $124.98
  13. TSB,USP,DS, 25ml; HDx, 4oz BR glass bottle
    SKU: U225-PK
    Manufacturer: Hardy Diagnostics
    Tryptic Soy Broth (TSB), USP, double strength, 25ml fill, 4oz glass bottle, order by the package of 12, by Hardy Diagnostics For use as a general purpose medium for the isolation and cultivation of a wide variety of bacteria and fungi. (12 per PK)
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    was $210.43 Special Price $168.79
  14. KIA Slant; HDx, 13x100mm tube, R
    SKU: R70-PK
    Manufacturer: Hardy Diagnostics
    KIA (Kligler Iron Agar) Slant, 13x100mm tube, 4.5ml fill, order by the package of 20, by Hardy Diagnostics (Kligler Iron Agar) For the identification of gram negative enteric bacteria based on hydrogen sulfide production and the fermentation of dextrose and lactose. Comparable to: Remel R061240 (20 per PK)
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    was $84.78 Special Price $68.00
  15. LJ Slant; HDx, 20x125mm tube R
    SKU: C21-PK
    Manufacturer: Hardy Diagnostics
    Egg based Lowenstein Jensen Media with malachite green are recommended for use in the cultivation and isolation of Mycobacterium species. Comparable to: Remel R09506 (20 per PK)
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    was $57.96 Special Price $46.49
  16. Kanamycin, 1000mcg HDx,HardyDisk,1x50disks
    Manufacturer: Hardy Diagnostics
    Kanamycin, 1000mcg, KAN, for the differentiation of anaerobic bacteria based on susceptibility to Kanamycin, 1 x 50 disks, use with dispenser number 260457, by Hardy Diagnostics, freeze on arrival Differentiates anaerobic bacteria on the basis of susceptibility to Kanamycin. Each cartridge contains 50 disks that are spring loaded for smooth and reliable dispensing from the single metal disk dispenser by BD BioSciences, product # 260457 Comparable to: Remel R21126 (1 per EA)
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    was $23.14 Special Price $18.56
  17. Rapid Urea Medium; HDx,15x45mmTube,10/vial R
    SKU: Z54-PK
    Manufacturer: Hardy Diagnostics
    Rapid Urea Medium, useful for Helicobacter pylori, 2ml, 15x45mm tube, 10 per box, by Hardy Diagnostics Rapid Urea Medium for rapid detection of urease activity in Helicobacter pylori, Cryptococcus neoformans, or Proteus spp. Biopsy specimen from endoscopy can be submerged into the agar, positive reactions (pink-red color) may be noted within minutes. The Hardy Diagnostics manufacturing facility and quality management system comply with the FDA's Good Manufacturing Practices (GMP) and have achieved ISO 13485 certification as a medical device manufacturer. Quality is a science...Service is an art. At Hardy Diagnostics, we believe in excellence in patient care...just like you do! Comparable to: BD 298330 (10 per PK)
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    was $41.04 Special Price $32.92
  18. PBS,Phos Buffer Sal,100ml; HDx,pH7.5, 125ml PP btl
    SKU: U137-EA
    Manufacturer: Hardy Diagnostics
    Phosphate Buffered Saline (PBS), Ph 7.5, 100ml fill, 125ml polypropylene bottle, order by the each, by Hardy Diagnostics Hardy Diagnostics Phosphate Buffered Saline (pH of 7.5) is recommended as a diluent for quantitative culturing or as a rinsing agent in microbiological, immunological, histological and molecular testing procedures. (1 per EA)
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    was $9.33 Special Price $7.49
  19. Middlebrook 7H9 Broth; HDx, 16x125mm tube R
    SKU: C32-PK
    Manufacturer: Hardy Diagnostics
    For the cultivation of Mycobacterium spp. from sterile body sites. Comparable to: BD 245113 (20 per PK)
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    was $81.39 Special Price $65.28
  20. Buff. NaCl Pep,USP,90ml; HDx,180mL wide mouth jar
    SKU: U255-PK
    Manufacturer: Hardy Diagnostics
    Buffered Sodium Chloride-Peptone Solution, USP, 90ml fill, 180ml optically clear, shatter resistant, polycarbonate, wide mouth jar, order by the package of 12, by Hardy Diagnostics For the preparation of isotonic suspensions and dilutions of microorganisms. Our bottle features: Heavy duty Bottles are tough and sturdy to reduce breakage Leak-Proof Easy-to-remove, perforated, shrink wrap ensures product integrity Optically clear Bottles are made of clarified polycarbonate for clear viewing. (12 per PK)
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    was $260.04 Special Price $208.57
  21. PBS w/0.05% T20; HDx,125ml HDPE NM bottle
    SKU: U235-PK
    Manufacturer: Hardy Diagnostics
    Phosphate Buffered Saline (PBS) with 0.05% Tween® 20, 100ml fill, 125ml HDPE bottle, by Hardy Diagnostics, order by the package of 12 Used during specimen processing for recovery of bacterial endospores. Recommended as a component of an anthrax screening programs for use in the nasal swab heat-shock procedures to recovery of Bacillus anthracis endospores. (12 per PK)
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    was $104.45 Special Price $83.78
  22. HC Salmonella/XLT4 Agar; HDx,15x100mm biplt10/pk*R
    SKU: J37-PK
    Manufacturer: Hardy Diagnostics
    Easy detection of Salmonella! Salmonella Agar is a chromogenic medium recommended for the selective isolation and differentiation of Salmonella spp. from other members of the family Enterobacteriaceae based on colony color. XLT-4 Agar is a highly selective plating medium for the detection and isolation of non-typhi Salmonella species. (10 per PK)
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    was $59.21 Special Price $47.50
  23. TSA 1.5X Strength, 150ml; HDx,8oz glass BstnRnd*
    SKU: U112-PK
    Manufacturer: Hardy Diagnostics
    Tryptic Soy Agar (TSA) 1.5 times strength, 150ml fill, 8 ounce boston round bottle, order by the package of 20, by Hardy Diagnostics Recommended for use as a general growth medium for the isolation and cultivation of microorganisms. (20 per PK)
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    was $556.04 Special Price $445.99
  24. Sabdex Agar, Emmons; HDx, plstc HardyFlask
    SKU: X57-PK
    Manufacturer: Hardy Diagnostics
    Emmon's Sabdex (Sabouraud Dextrose) Agar, plastic HardyFlask™, order by the package of 20, by Hardy Diagnostics Emmon's Sabdex Agar is recommended for the isolation, cultivation, and maintenance of non-pathogenic and pathogenic species of fungi and yeasts. HardyFlask™ Features: Lightweight For reduced shipping cost and less chance of breakage. Stackable For increased conservation of space, both in incubator and refrigerator. No special storage racks are needed. Interlocking For increased stability when incubating and transporting. Large surface area For the inoculum. Almost double the area! better isolation of colonies. Slanted neck Facilitates easy inoculation of the flat media surface. Improved clarity For better visibility of the growing culture, both front and back. Comparable to: Remel R064420 (20 per PK)
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    was $110.74 Special Price $88.83
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