Product appearance: inside and outside wall is smooth; this product is 1/8 inch silicone tubing (3mm silicone tube) and other size
AotoKoop product line: include general car silicone hose, different types of radiator tube, Coupler & Turbo intercooler pipe, Intake piping, etc.

AotoKoop Brand introduction

AotoKoop Silicon Hose Store is a universal automotive silicone hose manufacturers, and have 15 years production experience.

We provide high quality manually 3/4 layers of silicone products, and customize universal automotive (racing car & refitted car) replacement parts. Our products include general car silicone tube, different types of radiator silicone tube, Coupler & Turbo intercooler pipe, etc.

Universal 5mm Vacuum hose black size is 3/16 vacuum hose automotive (3/16 inch vacuum line)
3/16 inch vacuum tube, Our silicone hose kits are designed with your engines cooling as a top priority, products match SAEJ20 industry standards.

3/16 vacuum line (3/16 vacuum tubing), AotoKoop high performance handicraft silicone hose is made with high-grade silicone and a dual layer, that consists of heat resistant fibers, increased pressure tolerance; resistance to UV, water, oil, fuel, heat reductions and a life time expectancy of the hoses.

Our specific combination of silicone compounds and fabrics to deliver the required performance, reliability strength and flexibility required, improves the flow of engine cooling system and upgrades the performance.