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- Designed to Eliminate Drafts
- Provides Natural Voice Transmission
4-1/2" to 6" (114 to 152 mm)
7" (178 mm)
Material: 11 Gauge Stainless Steel
Finish: Brushed Stainless Steel #4 Finish
Glass Fabrication Required: See Instructions Important Notes: This speak thru now ships with two sets of screws, one suitable for 1/4" to 3/8" (6.4 to 9.5 mm) thicknesses, and another set good for up to 1-1/4" (32 mm) thicknesses that can be filed down to suit sizes in between.