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? What is the best way to store my STLTH ECO disposables? Do you need an Adult Signature upon delivery?