{"product_id":"microppose-petri-dishes-90mm-x-15mm-plates-with-vented-lid-polystyrene-sterile-500-pack-case","title":"Microppose Petri Dishes 90mm x 15mm Plates | Vented Lid | Polystyrene Sterile |500-Pack","description":"\u003cdiv class=\"mgk-product-content\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eMicroppose Sterile Petri Dishes — bulk 500-pack case\u003c\/strong\u003e of premium 90mm x 15mm polystyrene plates for commercial mycology, university labs, classrooms, and research facilities. Each case contains \u003cstrong\u003e25 individual sleeves of 20 plates\u003c\/strong\u003e, factory pre-sterilized and packed for efficient inventory handling. Open one sleeve at a time as you need them; the remaining 24 sleeves stay sealed and sterile until use.\u003c\/p\u003e\n\n\u003cdiv class=\"mgk-callout mgk-callout-ships\"\u003e\n  \u003cstrong\u003e✓ Significant Cost Savings vs. Individual 20-Packs\u003c\/strong\u003e\u003cbr\u003e\n  Buying the 500-pack case delivers substantially lower cost per plate than purchasing twenty-five individual 20-pack sleeves separately. Add our \u003ca href=\"\/products\/myco-labs-light-malt-extract-lme-agar-powder-blend-makes-200-agar-plates-200g-7oz\"\u003eLME Agar Powder Blend\u003c\/a\u003e and the total cost per finished poured plate works out to a small fraction of the $3–$5 retail price of pre-poured commercial agar plates.\n\u003c\/div\u003e\n\n\u003ch3\u003eWho Buys the 500-Pack Case?\u003c\/h3\u003e\n\u003cp\u003eThis is the case quantity preferred by serious commercial and institutional buyers who run agar work at scale:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommercial mushroom farms\u003c\/strong\u003e running cloning, isolation, and genetic library work on multiple species\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversity and college biology \/ microbiology programs\u003c\/strong\u003e stocking lab supplies for full-semester courses\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh school science classrooms\u003c\/strong\u003e for AP Biology, microbiology, and dual-enrollment lab courses\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCannabis tissue culture facilities\u003c\/strong\u003e running large-scale clean propagation and genetic preservation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResearch laboratories\u003c\/strong\u003e in mycology, plant pathology, or microbiology requiring consistent supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommercial culture producers\u003c\/strong\u003e pouring large batches of agar for resale or supplemental product lines\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMycology cooperatives and educational organizations\u003c\/strong\u003e sharing supplies across multiple growers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor occasional or hobby-scale agar work, the \u003ca href=\"\/products\/petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-20-pack\"\u003e20-pack sleeve\u003c\/a\u003e is more cost-effective. The 500-pack starts making sense when you'll use through it within 12 months.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Microppose for Bulk Lab Supply\u003c\/h3\u003e\n\u003cp\u003eFor commercial and institutional buyers, the choice of supplier matters more than for hobbyists — supply consistency, dish-to-dish uniformity, and machine compatibility directly affect lab productivity. Microppose engineers their dishes specifically for high-volume professional use:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptical-grade polystyrene\u003c\/strong\u003e for the clearest possible visibility of cultures, samples, and growth patterns — important for photo documentation, student observation, and quality control work\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 grams per dish\u003c\/strong\u003e — 25% heavier than typical disposable plates, delivering better stack stability when storing hundreds of plates and reduced flex during transfer work\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTriple-vented lid design\u003c\/strong\u003e for balanced gas exchange — reduces condensation buildup during incubation while maintaining a sterile barrier against airborne contaminants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat-bottom design\u003c\/strong\u003e ensures even agar distribution when pouring — critical for production batches where uniform medium depth affects yield consistency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMachine-stackable smooth surfaces\u003c\/strong\u003e — designed for automated plate handling equipment used in commercial production and research labs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSleeve packaging (25 × 20)\u003c\/strong\u003e — open one sleeve at a time to maintain sterility on unused portions; ideal for graduated supply use over weeks or months\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMicroppose products are designed in the USA and manufactured by one of the world's largest labware producers, combining global manufacturing scale with quality control standards used by professional laboratories.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Case\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500 sterile 90mm x 15mm petri dishes\u003c\/strong\u003e in 25 sleeves of 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptical-grade polystyrene\u003c\/strong\u003e single-use construction (NOT autoclavable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 grams per dish\u003c\/strong\u003e — 25% thicker than standard disposable plates\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eTriple-vented precision-fit lids\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlat-bottom design\u003c\/strong\u003e for even agar distribution\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory pre-sterilized\u003c\/strong\u003e — each sleeve sealed sterile until opened\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMachine-stackable\u003c\/strong\u003e smooth surfaces compatible with automated handling equipment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoxed for safe shipment\u003c\/strong\u003e — case ships in a protective outer container\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Microppose\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePallet Quantities \u0026amp; Wholesale Pricing\u003c\/h3\u003e\n\u003cp\u003eFor institutional buyers, commercial production facilities, and high-volume operations needing more than one case, we offer \u003cstrong\u003epallet quantities with freight shipping included\u003c\/strong\u003e. Pallet orders deliver the lowest possible cost per plate and ship directly from our distribution facility. Common use cases:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUniversity system supply contracts (multi-campus, multi-semester)\u003c\/li\u003e\n  \u003cli\u003eCommercial mycology operations producing fresh agar plates for sale\u003c\/li\u003e\n  \u003cli\u003eCannabis cultivation operations running large-scale tissue culture programs\u003c\/li\u003e\n  \u003cli\u003eResearch consortia and shared institutional labs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e for pallet pricing, freight quotes, and volume discounts. We can also accommodate purchase orders and net-30 terms for qualified institutional buyers.\u003c\/p\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eEach sleeve of 20 plates is sealed and sterile until opened. For high-volume workflows:\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen one sleeve at a time\u003c\/strong\u003e under your laminar flow hood or clean workstation. The remaining 24 sleeves stay sealed and sterile in the case.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare your agar separately\u003c\/strong\u003e in autoclave-safe containers. For mushroom work, our \u003ca href=\"\/products\/myco-labs-light-malt-extract-lme-agar-powder-blend-makes-200-agar-plates-200g-7oz\"\u003eMyco Labs LME Agar Powder Blend\u003c\/a\u003e is the recommended formulation — one 200g bag makes 200+ plates, so a 500-pack case pairs with roughly 2.5 bags of LME powder for a complete pour cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePour\u003c\/strong\u003e — fill each dish about 1\/3 full (roughly 18–20ml) with cooled sterilized agar (120–140°F \/ 50–60°C).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSet and store\u003c\/strong\u003e — allow plates to solidify with lids slightly cracked. Once solid, stack upside-down (lid on bottom) to prevent condensation drips.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefrigerate poured plates\u003c\/strong\u003e if not using immediately — sealed plates at 35–40°F stay viable for 30 days. Bring to room temp before inoculation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDispose after use\u003c\/strong\u003e — these are single-use plates and cannot be autoclaved. For reusable plates suitable for repeated sterilization cycles, see our \u003ca href=\"\/products\/microppose-reusable-autoclavable-petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-500-pack-case\"\u003eReusable Polypropylene 500-Pack Case\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"mgk-spec-table\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 dishes — 25 sleeves of 20 each\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDish dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90mm diameter × 15mm height\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight per dish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 grams (25% heavier than standard disposables)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptical-grade polystyrene plastic (NOT autoclavable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-use disposable — sterile from factory\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLid design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTriple-vented for balanced airflow\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBottom design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat-bottom for even agar distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSterility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory pre-sterilized via gamma irradiation, sealed sleeves\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmooth surfaces compatible with automated plate handlers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWholesale availability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePallet quantities with freight shipping included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMicroppose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDisposable vs. Reusable — Case Quantity Comparison\u003c\/h3\u003e\n\u003cp\u003eWe carry both disposable and reusable formats in case quantities. Quick guide to which makes sense:\u003c\/p\u003e\n\u003ctable class=\"mgk-spec-table\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChoose Disposable 500-Pack Case (this product)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eChoose \u003ca href=\"\/products\/microppose-reusable-autoclavable-petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-500-pack-case\"\u003eReusable Polypropylene 500-Pack Case\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eClassroom or instructional lab use\u003c\/td\u003e\n\u003ctd\u003eLong-term research lab with established sterilization protocols\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCommercial production where speed matters more than per-cycle cost\u003c\/td\u003e\n\u003ctd\u003eCommercial production prioritizing minimum long-term per-plate cost\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSettings where used plates can't be safely autoclaved on-site\u003c\/td\u003e\n\u003ctd\u003eFacilities with autoclave capacity that can absorb the sterilization workflow\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHighest possible optical clarity for photography or documentation\u003c\/td\u003e\n\u003ctd\u003eSustainability and waste reduction are explicit priorities\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRecommended Companion Products\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/myco-labs-light-malt-extract-lme-agar-powder-blend-makes-200-agar-plates-200g-7oz\"\u003eMyco Labs LME Agar Powder Blend\u003c\/a\u003e — premium MEA formulation; one 200g bag pours 200+ plates. A 500-pack case pairs with 2–3 bags for a full pour cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/laminar-flow-hoods\"\u003eLaminar Flow Hoods\u003c\/a\u003e — for sterile pouring at production volumes (our Bonsai H14 HEPA hoods are USA-built in Illinois)\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/autoclaves-pressure-cookers\"\u003eAutoclaves \u0026amp; Pressure Cookers\u003c\/a\u003e — commercial autoclaves available for high-volume agar sterilization\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-20-pack\"\u003eMicroppose Sterile Petri Dishes 20-Pack\u003c\/a\u003e — smaller quantity for hobby or occasional use\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/microppose-reusable-autoclavable-petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-500-pack-case\"\u003eMicroppose Reusable Petri Dishes 500-Pack Case\u003c\/a\u003e — autoclavable polypropylene for repeat use\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/colonized-agar-plates\"\u003eColonized Agar Plates\u003c\/a\u003e — ready-to-use mushroom cultures for direct transfer to your fresh plates\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/agar-supplies\"\u003eAgar Tools \u0026amp; Supplies\u003c\/a\u003e — scalpels, parafilm, and other agar work accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eHow is the case packaged?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe 500-pack case contains 25 individual sleeves of 20 plates each, packed in a protective outer carton for shipment. Each sleeve is independently sealed and sterilized — you open only the sleeves you need, while the remaining sleeves stay sealed and sterile in the case for future use. This allows you to graduate through the case over weeks or months without compromising sterility on the unused portion.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhat's the cost savings vs. buying twenty-five 20-packs separately?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eThe 500-pack case is priced significantly below the equivalent of 25 individual 20-pack sleeves at retail. The case is the right choice when you'll work through it within 12 months — typical for university labs, classrooms, commercial mycology operations, and high-volume tissue culture facilities. For hobby cultivators using a few plates per month, the 20-pack remains the better-value purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eDo you offer pallet quantities?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eYes — pallet quantities are available with freight shipping included. Pallet orders deliver the lowest possible per-plate cost and ship directly from our distribution facility. We work with university procurement offices, commercial mycology operations, cannabis tissue culture facilities, and research consortia. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e for pallet pricing, freight quotes, and volume discount tiers. We also accommodate institutional purchase orders and net-30 terms for qualified buyers.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eCan these be used with automated plate handling equipment?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eYes. The smooth, slippable top surface and consistent dimensions are specifically designed for automated stackers, dispensers, and handling robots used in commercial mycology production and research lab workflows. This is one of the design features that differentiates Microppose plates from cheaper bulk alternatives, where dimensional inconsistency can jam automated equipment.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eHow long do unopened sleeves stay sterile?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eIndefinitely, as long as the individual sleeve seal remains intact. Microppose plates are factory-sterilized using gamma irradiation and sealed in nitrogen-flushed sleeves. Stored in a clean, dry place out of direct sunlight, unopened sleeves remain sterile for years. This is particularly valuable for case-quantity purchases where you might gradually work through the inventory over many months.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eAre these reusable? Can I autoclave them?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eNo — these are single-use disposable polystyrene plates. Polystyrene melts and warps at autoclave temperatures (121°C \/ 250°F), so attempting to sterilize them in an autoclave will destroy them. For autoclavable plates that handle repeated sterilization cycles, we offer the \u003ca href=\"\/products\/microppose-reusable-autoclavable-petri-dishes-90mm-x-15mm-plates-with-vented-lid-sterile-500-pack-case\"\u003eMicroppose Reusable Polypropylene 500-Pack Case\u003c\/a\u003e in the same bulk format.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eWhat kind of agar should I pair with these for a complete bulk workflow?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eFor mushroom cultivation, the standard is malt extract agar (MEA) — our \u003ca href=\"\/products\/myco-labs-light-malt-extract-lme-agar-powder-blend-makes-200-agar-plates-200g-7oz\"\u003eMyco Labs LME Agar Powder Blend\u003c\/a\u003e is a pre-mixed formulation where one 200g bag makes 200+ plates. To pour through a full 500-pack case, you'll need approximately 2.5 bags of LME powder. For non-mycology applications, potato dextrose agar (PDA), nutrient agar, or specialty media work equally well.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eCan I order these on a purchase order for a university or institution?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eYes — we work with university procurement offices, school districts, research institutions, and corporate lab buyers. We accept purchase orders and net-30 terms for qualified institutional buyers. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e to set up an institutional account or discuss your specific procurement requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eHow should I store unused sleeves between uses?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eKeep unused sleeves in a clean, dry place at room temperature, ideally in the original case for protection. Avoid humidity, direct sunlight, and temperature extremes (don't store in garages or unheated spaces that go below 40°F or above 90°F). The factory-sealed sleeves are robust, but rough handling can compromise the sterile seal. Treat each sleeve like the sterile lab consumable it is until you're ready to open it.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"mgk-faq\"\u003e\n  \u003csummary\u003e\u003cstrong\u003eAre these the same plates as the 20-pack listing?\u003c\/strong\u003e\u003c\/summary\u003e\n  \u003cp\u003eYes — identical product, just in case quantity instead of single-sleeve quantity. Same Microppose 90mm × 15mm optical-grade polystyrene dishes with triple-vented lids, factory pre-sterilized, 16g per dish. The 500-pack case is for high-volume users who would otherwise need to buy 25 individual 20-packs.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Midwest Grow Kits","offers":[{"title":"1 Case","offer_id":44595537281127,"sku":"PTR1","price":79.99,"currency_code":"USD","in_stock":true},{"title":"1 Pallet (28 Cases)","offer_id":44595537313895,"sku":"PTR2P","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/3699\/8759\/files\/Petri_new_amazon.jpg?v=1789057588","url":"https:\/\/fernprairiemycosupplies.com\/products\/microppose-petri-dishes-90mm-x-15mm-plates-with-vented-lid-polystyrene-sterile-500-pack-case","provider":"Fern Prairie Myco Supplies","version":"1.0","type":"link"}