Hi and thanks for looking at our listing for a Genuine Numatic Stainless Steel 38mm extension tube. This is known as part number 602920.

This is 100% Genuine Numatic Part. And made from a high grade stainless Steel

This extension rod will fit the following models with a 38mm Tool Kit:

CV570, CVD570, CV900, CVD900, WV570, WVD570, WV900, WVD900, WVD1800DH, WVD1800AP, WVD2000, NVQ570, NVDQ570, NVQ900, NVDQ900,

If you need any help please contact us using the contact seller link above.