Von Duprin 88K Rim Exit Device with Knob TrimThe Von Duprin Rim Exit Device with Knob Trim is a commercial rim exit device with function: Rim Exit Device, exit device type: Rim Device, material: Stainless Steel, BHMA grade: Grade 1. Shared product specifications apply across available finish or configuration variants where applicable. Rim Exit Device with Knob Trim Brand: Von Duprin Product Type: Rim Exit Device Function: Rim Exit Device Collection: 88 Collection Configuration: Rim Exit Device