Heil H4A7C Vibration Isolator Mounts from Canada
Heil H4A7C rubber/steel vibration isolators reduce compressor noise and vibration transmission in rooftop packaged air conditioning units for stable temperature operation. Under HTS 8415.90.80 as mounting components dedicated to AC machines.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Deflection/load ratings must match compressor specifications exactly
• Neoprene vs EPDM compounds affect ozone/UV resistance documentation
• Pre-compression settings prevent installation failures