Fits ST-18 tubes

Semroc Tubing Coupler ST-18 0.25" Long SEM-HTC-18S *

Semroc Tubing Coupler ST-18 0.25" Long Fiber Tubing Couplers are used as lightweight sections for co…

Semroc Tubing Coupler ST-18 2" Long SEM-HTC-18 *

Semroc Tubing Coupler ST-18 2" Long  SEM-HTC-18 Spiral Wound Rice Paper OD:   ID: Thi…

Semroc Balsa Tube Coupler ST-18 SEM-BTC-18 *

Balsa Tube Connector is a precision sanded block to connect two ST-18 series tubes together. Precisi…