Keystone Filter offers On-Line Ordering for your convenience. Look for the logo below throughout this site.

To place an order - follow these simple steps:

1. Drill down through the website to the product you are interested in.
2. In the table or list on the page find the model number you wish to purchase.
3. Click on the model number for pricing and detailed specifications.
   
4. Click on "Add to Cart" to add that product to your shopping cart (Note: When in the cart you can increase the quantity of the item to more than one).
5. To order additional products, click previous page or use the navigation bar on the left to go to a different product.
6. When finished adding your last product to the cart, click on "Go to Cart".
7. Adjust your quantities for each item (if desired) and click recalculate to get your new total price.
8. Click on checkout to finish your transaction.
9. Enter your shipping and credit card information - we accept Visa and MasterCard.
   
10. Your order is now complete.