Tnisesm Silicone Vacuum Hose Kit — 6-piece 6.6 ft (3–10mm) High‑Temp 130PSI

Tnisesm 6.6 FT Vacuum Hose Kit is a six-piece silicone tubing set that supplies 6.6-foot lengths in six inner diameters for durable, high-temperature air and coolant routing up to 130 PSI.

This kit bundles widely used vacuum and coolant hose sizes into one cost-effective package so mechanics, fabricators, and DIYers have the right diameter on hand. Each hose is made from reinforced high-temperature silicone with thick walls for strength and a wide operating temperature range, making it suitable for engine bays, marine systems, and custom intake or cooling projects. The set is intended for air and water transfer; do not use with gasoline or oil.

What sizes are included and why do those diameters matter?

The kit contains six 6.6-foot lengths in inner diameters: 3mm, 4mm, 5mm, 6mm, 8mm, and 10mm. Those sizes cover common vacuum lines, sensor hoses, small coolant feeds, and breather or PCV plumbing, reducing the need to buy multiple separate rolls.

• 3mm (1/8") for small vacuum lines and sensors
• 4mm (5/32") for medium vacuum connections
• 5mm (3/16") for PCV and small coolant runs
• 6mm (1/4") and 8mm (5/16") for larger breather and intercooler plumbing
• 10mm (3/8") for primary coolant bypasses and bigger air lines

How durable is this silicone hose and what temperatures/pressures will it handle?

The hoses are reinforced high-temperature silicone with a 3mm wall thickness, engineered for strength and long service life. They are rated for a working pressure around 43 PSI, burst pressures up to 100 PSI at high temperature and up to 130 PSI at room temperature, and operate across -76°F to 392°F (-60°C to 200°C).

• Reinforced construction for improved tear and stretch resistance
• Wide temperature capability for hot engine bays and cold climates
• Measured working and burst pressures for safe application planning

What applications are suitable for these hoses and what should I avoid?

These silicone hoses are intended for general-purpose air or water transport in automotive, marine, industrial, and DIY projects. Ideal uses include vacuum lines, intercooler/charge piping sections, radiator overflow or coolant bypass, and custom intake plumbing. They are not designed for fuel, oil, or other hydrocarbons—use approved fuel-rated hoses for those fluids.

• Good: vacuum, intake air, coolant, breather lines, and marine bilge air
• Not for: gasoline, diesel, oil, or hydraulic fluids
• Clip and clamp with appropriate fittings to prevent leaks and kinks

How does this kit help a home mechanic or shop save time and money?

By supplying multiple common diameters in ready-to-cut 6.6-foot lengths, the Tnisesm kit eliminates repeated small purchases and minimizes downtime searching for the right size. Having spare lengths on hand simplifies repairs and prototypes, and the reinforced silicone reduces repeat replacements compared to thin-wall tubing.

• One kit covers most vacuum and small coolant needs
• Long 6.6 ft lengths allow custom cuts for multiple projects
• Durable material lowers frequency of replacement

Who is this for: The Tnisesm 6.6 FT Vacuum Hose Kit is aimed at automotive enthusiasts, home mechanics, boat owners, and light industrial fabricators who need dependable, high-temperature silicone tubing in common diameters. Choose this set if you want a versatile, ready-to-use collection for air and water routing—but select fuel-rated hoses for any gasoline, diesel, or oil applications.