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 Avogadro's Lab Supply specializes in chemistry glass, porcelain and lab hardware. We supply science fair equipment retorts condensers crucibles beakers flasks cylinders test tubes burets support stands stoppers clamps thermometers hydrometers pyrex tubing bunsen burners hotplates scales pH meters

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  • Store Policies
Shipping & Payment
Combined shipping is automatically calculated on all multiple purchase orders. If the shipping calculation appears high contact us and we will manually recalculate. You can pay for your purchases instantly using Paypal or you may pay directly using a credit or debit card. Call 609-388-1775 or email us at to complete your order.



Payment is expected within 10 days of your purchase.  If you have not made payment arrangements during this period your order will be cancelled and a non paying bidder claim will be filed with eBay for fee reimbursement.

Payment Methods

In addition to PayPal other acceptable payment forms are Money Orders and Cashiers checks.


We also accept directly Visa, MasterCard, American Express, Discover and Debit Cards with the Visa / MasterCard / AMEX logo.  Call 631-828-4785 (9 to 8 EST) and your order will be processed through our secure terminal.  In the alternative, you can email your card information to

Shipping Locations



UPS Ground, Next Day, Second Day, Third Day, Expedited, Standard

USPS First Class, Priority, Priority and Express International 

Sales Tax

 8.75 % If shipped within N.Y.

International Sales

Many countries impose an import tax / duty on products purchased in another country.  These fees are typically collected by the carrier upon delivery.  Avogadro's Lab Supply does not charge or collect the import taxes or duties mandated by a foreign government.  You must contact your Customs Bureau to ascertain what those fees will be.

Customs Declarations

It is illegal to file a false instrument with the United States Bureau of Customs .  All requests to misrepresent package content or value will be summarily denied.  Likewise, requests to to declare the shipment as a gift will also be denied.

Credits & Returns

Avogadro's Lab Supply will not accept returns without prior authorization and then only within 14 days of the sale.  Authorized returns must be sent freight prepaid.  No refund will be offered until the goods are received and verified to be in a re-salable condition with the original packaging intact.  Accepted returns will be refunded for the purchase price only less a 15% restocking fee.  Buyer also needs to confirm purchase cancelation with eBay before a refund will be given. If buyer does not confirm purchase cancelation with eBay, seller's eBay Final Value Fees will be deducted from the refund given.

Prepaid return mailing labels will be made available for goods that are to be returned to Avogadro's Lab Supply due to an error such as an incorrect item.

All shipments are insured, damages that occur in transit must to be reported to the carrier and Avogadro's Lab Supply.  Each carrier has their own reporting requirements. 

Questions / Information

For assistance or information please call 690-388-1775, Monday through Saturday, 9 - 7 EST or email