Wall thickness: The wall thickness of the vacuum tube is 3mm, which can prevent collapse under vacuum. Material: silicone. Working Pressure: 43PSI. Burst Pressure: 100PSI (high temperature),130PSI (room temperature). Temperature range: -40°F to 428°F (-40°C to 220°C). Application: Wildly used in automotive vacuum lines, brake booster lines, turbochargers, etc. Package includes: 4pcs silicone vacuum hoses 5ft(1.5meters) of 5/32"(4mm) inner diameter 5ft(1.5meters) of 1/4"(6mm) inner diameter 5ft(1.5meters) of 5/16"(8mm) inner diameter 5ft(1.5meters) of 3/8"(10mm) inner diameter .
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