Large preparative culture bottle tube rotator roller mixer prep shaker 120 mm

used working fixed speed (approximately 100 rpm) bottle/tube rotator. the unit can hold up to 12 bottles with diameter up to 120 mm (1-liter culture bottles or similar). rotates quiet. the clamps for all 12 bottles are included as pictured. If not satisfied. You can return this unit within 30 days for a full refund minus shipping.