Frequently Asked Questions

Yes! By logging in to your account, you can change all pertinent account information, addresses, payment methods, etc.

We work with suppliers worldwide to offer quality products at exceptional value. We can, however, offer discounts for orders that meet quantified thresholds for total order value or quantity.

To find out if your account is eligible for discounts, or for information on establishing a blanket order, please get in touch with our sales team at [email protected].

We accept all major credit cards. We also accept PayPal, Wire Transfer, and Net 30 Purchase Order Terms (after approval by our team.)

You can easily sign up for newsletters by scrolling to the bottom of this page and entering your email address in the section Join Our Newsletter and click JOIN.

We will not share your information with any other companies or services.

You can submit a purchase order through the shopping cart, or you can email [email protected].

Some products arrive from our vendors in set package quantities. These quantities will not be broken.

Additionally, we do accommodate custom orders. Because custom orders may require additional tooling, set-up charges, or fees, there may be a minimum quantity associated with that item.

If you would like information on ordering a custom product, please contact our sales team at [email protected].

Yes. Domestic orders must reach a minimum of $20 (before shipping).

International shipments must reach $250 (before shipping) before the order will be accepted.

Monday through Friday from 7:30 AM to 3:30 PM (EST), you can get information on your order by calling Tisch customer service at 877-238-8214.

For requests outside of our operating business hours, please email [email protected]. We will reply on the next business day.

There are multiple ways to ensure you order the correct item for your application.

First, be sure to understand the requirements of your application.

• What chemicals will be used? Are they compatible with the filter media? Start with our Material Compatibility Chart!
• What type of filtration do you need? Exclusion? Centrifugal? Pre-filtration? Gravity Filtration? Vacuum Filtration?
• What pore size is required for your application? Our site uses microns (µm) as a standard unit for this measurement.
• Is wettability important to your application (should your membrane be hydrophobic or hydrophilic)?
• What type of connection does your application require? Luer-Lock? Luer-Slip? Hose barb?
• What is the expected length of the project? Filters with smaller pore sizes can become clogged easily. Make sure you have enough for the duration of your project.
• If you are still unsure, speak with our customer support technicians via phone: 877-238-8214 or email: [email protected]

Monday through Friday from 7:30 AM to 3:30 PM (EST), you can get information on your order by calling Tisch customer service at 877-238-8214.

For requests outside of our operating business hours, please email [email protected]. We will reply on the next business day.

To ensure products will be available when you need them, speak to our customer support team about joining our custom stocking program.

Through this program, you will work with an internal representative to establish your needs, set expectations for delivery, and negotiate price discounts.

If you would like to start this conversation via phone or email, please contact us at at 877-238-8214 or [email protected].

We do accommodate custom orders. Because custom orders may require additional tooling, set-up charges, or fees, there may be a minimum quantity associated with that item.

If you would like information on ordering a custom product, please contact our sales team at [email protected].

Within the continental United States, we typically use UPS or FedEx. For international shipments, we can also ship via DHL.

We do not ship via USPS.

We can use prepay and add, or collect billing for shipments.

Yes. However, this option is only allowed under specific circumstances. To find out if your order is eligible for pickup, please contact our support team at [email protected] prior to visiting our location.

Orders are generally shipped in 1 day after your order is processed and they normally take an additional 3 - 5 business days to arrive.

Orders are processed Mon-Fri during normal business hours.

You may return damaged or defective merchandise within 10 days of the original purchase date for a full refund minus shipping charges. We will also be glad to exchange the damaged merchandise for anything on our site of equal or lesser value.

For detailed information on our returns policy, please refer to our Terms and Conditions.

We do not have the ability to provide samples for all products.

However, if a sample is available for a specific product, it will be noted on the product page.

Unfortunately, we can't provide samples for free. We will provide a discount for a sample when applicable.

We do not operate under ISO or FDA guidelines. We do adhere to an internal quality process.

If you need quality documents, we can accommodate most requests. To request documents, please complete our document request form [link]. Please include details about the product, including SKU, Product Name, Description, and any relevant information about the intended application.

Yes! We can provide quality documents and certificates of conformance. However, as a stocking distributor, we do not have control over any regulatory processes of our vendors. Any requests for documentation will be forwarded to the vendor and provided only on a case-by-case basis.

To request documents, please complete our document request form Request Quality Documentation form. Please include details about the product, including SKU, Product Name, Description, and any relevant information about the intended application.

There are many resources to help determine the appropriate filtration media to use for your application. We recommend using our Material Compatibility Chart first.

If you can't find the chemical you are using or one with a similar chemical makeup, email customer support at [email protected]. Please include as much information about your application as possible. We will contact the vendor to verify compatibility.

Tisch Scientific maintains a climate controlled and low particulate environment for product storage. Products are well segregated by category and packages are all individually labeled and stored in clearly marked bins. Cycle counts and inspections are performed at least weekly to assure product conformity.

We inspect 100 % of of our incoming material before it is stocked. Defective material is immediately quarantined while waiting for disposition. Root cause, corrective action and evidence of effectiveness studies are performed on every non-conformance.