Matched OEM Part Number : 2.863-314.0 (KFI 357 standard type). Simple and tool-free installation. Compatible Models : WD 2 Plus, WD 3, WD 3 Battery, MV 3, WD 3.200–WD 3.800 M, SE 4001, SE 4002. Material : High-grade filter paper + ABS + AB glue, sturdy and durable.
