3 for 2


Promotion starts April 12, 2021 and will expire April 23, 2021.

Valid for ChromoTek reagents, except Nano-Traps with 10, 200 and 400 reactions; Nano-Trap sizes 20 and 100 reactions included.
When combining different products, the lowest-priced item will be free of charge for you!
Please provide promo code 3for2 on your order to take advantage of this offer.
Not in combination with other discounts or test samples.
Void where prohibited.

Bonus Promotion

Spend 500 USD/ EUR/ GBP on ChromoTek products and qualify for a free 20µl Proteintech antibody.

To take advantage of this one-time offer, submit a qualifying 500 USD/EUR/GBP order on ptglab.com or ChromoTek.com and Proteintech will follow up to offer you your free antibody.

Questions? Email us at support@chromotek.com or  proteintech@ptglab.com

Terms & Conditions

  1. To take advantage of this offer, spend a minimum of $500 USD/EUR/GBP in one order with ChromoTek products, and receive one free Proteintech trial-sized antibodies of your choice.
  2. Limit one trial-sized antibody regardless of additional money spent.
  3. Cannot be used in conjunction with any other offer.
  4. Only $99 pre-made primary antibodies offered in a 20µl size are available as free products.
  5. Offer valid from 01/03/2021 - 31/05/2021 in the US, Canada, UK, and Europe.
  6. Void where prohibited
  7. Proteintech & ChromoTek reserve the right to cancel or refuse this promotion at any time.