Baluster Connectors or Baluster Mounting Hardware are mainly brand specific, but the Round Connectors should fit any 3/4" Round Aluminum Baluster. You may be able to save some money by going with a less expensive connector.
You will also find Baluster Accessories in this category. Spice up your rails and balusters by adding Decorative Baskets, Collars, and Center Pieces. Compatible with all standard baluster sizes, these decorative additions can make all the difference in a stunning deck design! Designed as part of the baluster or added to a finished rail, these deck accessories will add the finishing touch to your deck project. Mix and match colors and styles to achieve the custom look you want. Design tip: Use in groups of 3's. Apply from the center and work toward the edges of each section. Don't overuse.