How to order correct cap size:
Select the outside diameter of your round tube using the "Tube Size" drop down
Then select how many you want using the "Pack Size" drop down. (If you need a quantity that is not listed combine the "Pack size" by adding multiple "Pack Sizes' to you cart prior to check out or ask by sending an email for a quote with specific quantity.
If ordering multiple sizes ask for combined shipping discounts.
**DIMENSIONS ARE FOR OUTSIDE OF THE ROUND TUBING** (Select the size that matches the tubing outside measurement)