Test Tube Holder

Unico - SQ2800-101P - Accessories: Test Tube Holder Kit, For 8-20 mm Dia. Test Tubes, Includes: Universal Base, V-Type Tube Holder (DROP SHIP ONLY)

Unico - S-1100-114 - Accessories: Test Tube Sample Holder, for 1" Test Tubes (DROP SHIP ONLY)

Unico - S-1100-113 - Accessories: Test Tube Sample Holder, for 3/4" Test Tubes (DROP SHIP ONLY)

Unico - S-1100-102 - Accessories: Test Tube Sample Holder, for 10 mm Diameter Test Tubes (Standard w/ Instrument) (DROP SHIP ONLY)

American 3B Scientific - U29353 - Wood Clamp for Test Tubes