Is the STLTH ECO XL refillable? October 27, 2025 13:28 Updated No, the STLTH ECO XL comes pre-filled with 20mL of e-Liquid and is a non-refillable disposable. Related articles Why should I buy the STLTH ECO XL Disposable? How do I change the mode on the STLTH ECO XL Disposable? Is the STLTH ECO BOX Disposable refillable? Does the device have a display screen? What is the best way to store my STLTH ECO disposables?