Store SBR 3.9" x 7" Coupler Tube $6.49 SBR 3.9" x 7" Coupler Tube $6.49 Model Number: CPL4 Maximum quantity exceeded Minimum purchase amount of 0 is required Maximum purchase amount of 0 is allowed 6.490 46 Left in Stock Categories: Parts and Accessories Manufacturer: SBR High Powered Model Rockets Description 3.9" x 7" Coupler Tube - compatible with SBR Airframe Tubing