Material: 0.025mm aluminum foil, 0.8-1.4mm steel wire Maximum temperature resistance: -30°C ~ 150°C Maximum pressure resistance: 250mmH₂O Optional accessories: SHL-1 pipe clamp, VCD round single-blade butterfly valve, ASH square-round hood, ACD round diffuser Standard length: 10m Specification: Φ2”–Φ20”