Fits BT-50 & BTH-50 tube

Semroc Balsa Nose Block or Coupler BT-50, 1.4" Long SEM-NB-50L

Semroc Balsa Nose Block or Coupler BT-50, 1.4"   SEM-NB-50L Precision Turned Balsa Made in…

Semroc Coupler BT-50-1"(1pk) Craft Paper(same as JT-50C) SEM-CPL-50-1

Semroc Coupler BT-50-1"(1pk) Craft Paper (same as JT-50C) SEM-CPL-50-1 1 pack ID 0.880” OD 0…

Semroc Coupler for BT-50 tube 4"Length(1pk) Craft Paper SEM-CPL-50-4

Semroc Coupler for BT-50 tube  4"Length(1pk) Craft Paper  SEM-CPL-50-4  1 pack ID 0.…