Limited-Time Promotions
Free Ground Shipping on Orders Over $1,500
Through 30 April 2026 | U.S. Direct Customers Only
Receive free ground shipping on web orders totaling more than $1,500.
Use promo code: FREESHIP26
Free Shipping Details
Promo code FREESHIP26 must be mentioned at time of order. No limit on number of uses. Each order total must exceed $1,500 after any applicable discounts or other offers. Order must ship complete. Orders containing reference standards requiring overnight shipment on ice will ship overnight; all other orders ship ground. Offer valid through April 30, 2026. Available for U.S. direct (nondistributor) sales only.
Free Gas Generator Maintenance Kit
Through 30 September 2026 | U.S. Direct Customers Only
Purchase a qualifying Restek gas generator and receive one designated maintenance kit (valued up to $2,425) at no cost. No promo code is required. The maintenance kit will automatically ship with your generator purchase and does not need to be added to your cart.
Generator Maintenance Kit Offer Details
No limit on number of uses. Each qualifying gas generator ordered will automatically ship with one designated maintenance kit at no cost (no substitutions). Free maintenance kit does not need to be added to order and will not appear in the online shopping cart or in order confirmation email. Available for U.S. direct (nondistributor) sales only.
Qualifying Generators & Included Kits
Simply purchase one of the qualifying generators below, and a maintenance kit will ship with your order at no extra cost.
| Qualifying Generator(s) | Included Maintenance Kit |
| Parker Balston Generators: 29278, 29279, 29280, 29281 | 29288 |
| Parker Hydrogen Generators: 22144, 22146, 22148, 22150, 22152 | 22154 |
| Gas Station for Parker Model: 20177 | 24915 |
| Parker Balston Zero Air Generator: 29282, 29283, 29284, 29285 | 29286 |
| Parker Zero Air Generator: 20684 | 21646 |
| Nitrogen Generator for LC-MS: 22131, 22133, 20677 | 22135 |
| Parker Nitrogen Generator: 20697 | 21655 |
Order now at Restek.com — or contact your local Restek Sales Rep today!
