Hi & Welcome to our listing for a Genuine Numatic 356mm Diameter Filtex Primary (red) Filter. This part is known as 604137.

 

This is a genuine Numatic Part.

 

If your Primary filter is blocked, damaged or starting to smell then this replacement filter could be just what you need.

 

This filter is fitted along with the Permatex  356mm filter to improve filtration or use the machine without vacuum bags.

 

This Filter will fir the following models:

NVQ570, NVDQ570, NVQ900, NVDQ900, HZD570, HZD900, WV570, MVD570, MV900, MVD900, NDS570, NDD570, NDS900, NDD900, HAS750, NTT2003, NTD2003, NES900, NED900, NED570, NES570. WV570*, WVD570*, WV900*, WVD900*, CT570*, CTD570*, CT900*, CTD900*

 

Any machine marked with a *  the filter will fit to use the machine in dry mode you will need the correct dust bag.

 

If you have any questions, or we can help in any other way. Please feel free to contact us using the contact seller link above.