437 is 24LB FIBERLOCK inkjet premium bond paper. 437 provides improved ink adhesion, print quality, line acuity and image clarity specifically with new static head inkjet print technology such as HP PageWide. 437 produces a richer black and brighter colors while using less ink, minimizing curl and cockling without sacrificing print speed or color accuracy. 437 still maintains compatibility with multiple print technologies including toner and inkjet.