Numatic TEL 390-11 Original Instructions Manual page 5

Replacing the Cartridge Filter, Austauschen des Filterelements,
Remplacement de la cartouche filtrante, Vervangen van het patroonfilter,
Substituir o filtro de cartucho, Sostituzione della cartuccia filtrante, Cambio del filtro de cartucho,
Wymiana wkładu filtracyjnego
908549
H13 Filter Cartridge (Drilled)
Neoprene Sealing Washer
Replacing HEPA filters process:
UK
Remove the contaminated HEPA filter and place in a suitably impervious plastic bag and
dispose of in accordance with current regulations.
Replace the HEPA filter with an identical Numatic approved part (908549)