If you will be using RoundBars with the BaseLine, SkyLine, TimberLine or RidgeLine towers purchase PN 8003536, a four pack of RoundBar Adapters, separately.
If you have lost or damaged one of the adapters you can purchase them separately using part number 8880641, click here to order.
For more help contact us here, or by phone at 888-925-4621 during business hours