Flat Sealing Ring (TPE, Black, 4*2 inch)

TPE Rectangular Duct Seal
This flat style sealing ring is manufactured from TPE for elasticity and durability, designed specifically for rectangular duct systems.

Material Advantage
Strong anti‑aging and flexible sealing performance.

Size
4 × 2 inch standard rectangular duct size.

Application
Helps reinforce airtight performance in ventilation ducts.