Compatibility - Sovol 3D Upgraded Pre-drilled FEP Film only fits for Sovol 2021 new design Resin vat with single steel ring and 10 screws. Easy to Install - No more need to drill hole and the installation process can be finished within several minutes. High UV Light Transmittance: With over 95% light transmittance, this ultra-transparent film ensures high stability of UV light. High Temperature Resistance - Long-term working temperature 205 , melting point 260. Perfectly smooth, scratch free, perfectly cut, and shipped in thoughtful protective packaging. Note - FEP film is comsumable and should be replaced once deformed or damaged during printing. Please let us know if your have any problem.