HARTFORD BUILDING PRODUCTS - sells a wide Variety of Interior and Exterior ADA Thresholds.
HBP- 1/2" ADA Solid Wood Interior Thresholds in a Variety of Woods to choose from . Manufactured by Hartford Building Products.
Cal-Royal - 1/4" and 1/2" Aluminum ADA Thresholds in Mill and Dark Bronze
KN Crowder- 1/2" ADA Aluminum Thresholds - Mill Finish Only
Endura - 1/2" ADA Aluminum Thresholds- Mill Finish Only