Normally, the military discounts programs on some occasions of the year. In order to know whether it is offered or not is depended on Gpfilter's policy sales, you can visit the store now for your reference.

In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on Gpfilter's policy, you can contact Gpfilter via mail for your reference.

Gpfilter can offer international shipping for certain purchases but not all orders. Check out their shipping policy to know if your order can be internationally shipped or not.

Let us know via email, our team will confirm with Gpfilter to fix and remove all Promo Codes, Coupon Codes, and Deals that aren't working.

At the time of updating, Gpfilter has not applied Student Discount all year round yet. Check the official store and reach out to the customer support team to be clear.