The Estes BT5–BT50 Tube Couplers pack gives rocketeers the ability to expand their builds and repair rockets with precision. Each pack includes six couplers—two each of BT5 (1 inch long), BT20 (0.75 inch long), and BT50 (1 inch long)—covering three of the most widely used body tube sizes in model rocketry. These couplers are crafted for a snug, secure fit, ensuring your rockets maintain their strength and stability during flight.
Reliable and Durable Connections
Estes tube couplers are made to withstand repeated launches and recoveries, maintaining structural integrity even after multiple uses. By securely joining body tubes, they keep your rockets aligned and flight-ready, reducing the risk of separation or instability mid-flight.
Versatile for Repairs and Custom Builds
Whether you’re extending the body of a rocket, repairing a damaged section, or experimenting with a custom design, this coupler pack has you covered. The inclusion of three popular sizes ensures you’ll always have the right coupler for your build.
Perfect for Every Rocketeer
From beginners learning the basics to advanced hobbyists designing one-of-a-kind rockets, the BT5–BT50 Tube Couplers are an essential addition to any workshop. They provide the flexibility and dependability you need to bring your rocket designs to life and keep them flying strong.