Numatic James JVP180 bags and filters
NVM-1CH dust bags and a 12in TriTex pre-motor filter.
Every version in the "Also covers" list takes the same parts.
Dust bags
Pre-motor filters
Numatic 12 inch TriTex filter (180/200/240/370 machines)Genuine
Source: Numatic, 28 Oct 2026
Finding the model number
It's worth a look at the rating plate first, because names get reused across generations. Label on the back of the machine (Numatic).
When to change them
A bag lasts up to about a month with average use; change it when the machine feels heavy or suction drops. Check the bag often. The TriTex/MicroFresh filter is not washable: tap or shake the dust off instead. (source)
A bag that's only half full can still be done for: fine dust blocks the pores first, which is why the indicator can go red early after a lot of plaster or fireplace dust.
Seeing a full warning on a fresh bag usually points to a blockage in the hose or floorhead. Check there before blaming the bag.
Washable filters go back in bone dry or not at all. A damp one smells, and on some machines it can let the motor pull moisture through.
Quick answers
What dust bags does the Numatic James JVP180 take?
NVM-1CH, sold by Numatic as the Numatic NVM-1CH HepaFlo filter bags.
If I've got a Numatic James JVP180, which pre-motor filter do I need?
12in TriTex, sold by Numatic as the Numatic 12 inch TriTex filter (180/200/240/370 machines).