If you are looking for a professional vacuum hose adapter, then your research is over here. That's because our product can meet your need. Adopted of , practical and durable for long time use, not easy to get deformed and bring you much convenience. Features -Color:Black -Material:ABS -Size:8.30X4.40X4.40cm/3.26X1.73X1.73in -Size:8.30X3.80X3.80cm/3.26X1.49X1.49in Inner diameter: 32mm Outer diameter: 37mm/39mm - This hose adapter can connect 37mm outer diameter vacuum hose with 39mm outer diameter vacuum hose. - Replace your old or broken vacuum hose adapter with a new one. - Simply insert the end of the hose to change the diameter of the hose. - Allowing you to extend existing vacuum hose or connect with other attachment. - Outstanding workmanship, reasonable design, stable and practical, will bring you a . Package list: 2 x vacuum hose adapters