Home   >  8437S

List Price

$40.55 / FT.

Thermal Break Bumper Seal Threshold - Silicone - Mill Aluminum, 7/8" x 7"

Product Features

  • Aluminum alloy 6063, T5 temper
  • 7-1/8" wide x 7/8" tall
  • Fluted top
  • Features a rigid thermoplastic spline creating a separation to prevent the transfer of outside temperature and frost through the threshold
  • Typical wall thickness .110"
  • Weight: 1.29 lbs./ft.
  • #10 x 1-1/2" FH zinc plated wood screws included
  • Silicone is black
  • Mill finish


  • ANSI/BHMA CERTIFIED. Certified thresholds comply with American National Standard for Thresholds ANSI/BHMA A156.21 1,000 lb. load test and are listed in the BHMA Certified Products Directory.

  • AIR INFILTRATION TESTED to ASTM E283, Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.


  • Slip resistant SIA finish