How to Shop

Shopping on the MKS website is easy and secure. Simply go to the Product Catalog and click on the links of products that you would like to order. When you get to the product configuration page just enter the quantity for each configuration and click "Add items to your Shopping Cart." You will then see your Shopping Cart and can "Proceed to Checkout", "Continue Shopping" or "Request a Quote."

Some items require an MKS Applications Engineer to contact you to discuss product configurations. These items appear in the electronic catalog as requiring a quotation. Add them to your shopping cart in the usual way, then click "Request a Quote", fill out your relevant contact information and click "Click here to submit your RFQ." An MKS Applications Engineer will contact you.

If you continue shopping your items will be saved in your Shopping Cart so you can add more products. If you proceed to checkout you will be given a Sales Order Form to complete for processing your order. If your organization has a discount structure with MKS, it will be applied to your order.

You have a choice to purchase by credit card or purchase order. Your credit card will not be charged until the order is shipped. Please make sure that your credit card limit will cover taxes and shipping charges. After you have filled out the form, click the "Click here to Order" button.

Next you have to fill out the Tax Information Form. If you are an organization exempt from sales tax, please mail or fax MKS your tax exempt certificate (if it is not on file at MKS). If MKS does not have your tax exempt certificate on file, processing your order will take more time. After MKS has your tax exempt certificate, enter your seller's permit number and click "Submit". If you are subject to sales tax please fill out the form and click "Submit".

You will then see your Sales Receipt with the order information that is being processed. Please print a copy of the receipt for your own records.

If you would like to make a purchase, but do not wish to give your credit card or purchase order information online, please call MKS Customer Service at 1-800-227-8766.

Need help?

Contact MKS by sending an email or call 978-645-5500.