Assertion: cartridge filter | /r/HasProperty | popular
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Moreover, cartridge filters are popular because they involve minimal maintenance.[citation needed]In some situations,[clarification needed] it may be sufficient to hose off a cartridge filter a few times each season to keep them working properly.[citation needed]
text: Cartridge filters are often a popular choice because they are easy to maintain.