Spare part auto-darkening filter, when you already have a welding helmet 10 or 10-QR (must be ordered separately)Appropriate for MIG, Stick and TIG (> 20 A)For maximum safety and comfort, make it a habit to check your equipment regularly. Replace worn out or damaged partsAuto-darkening filter for 3M™ Welding Helmet Series 10. Variable dark shade 10-12 (10V)