Fits BT-3.0"H tube

Semroc Coupler for BT-3.1 tubes 6" length(1pk) Craft Paper SEM-CPL-3.1-6 *

Semroc Coupler for BT-3.1 tubes 6" length(1pk) Craft Paper    SEM-CPL-3.1-6 ID x.x" OD x…

Semroc Coupler for T-3.0 tubes 6" length(1pk) Craft Paper SEM-CPL-3.0-6 *

Semroc Coupler for T-3.0 tubes  6" length(1pk) Craft Paper    SEM-CPL-3.0-6  ID…

Totally Tubular Coupler CPL-3.0" x 34"(1pk) TT-CPL-3.0-34 * Discontinued

Totally Tubular Coupler CPL-3.0" x 34"(1pk)  TT-CPL-3.0-34 1 pack ID ” OD 2.920”…