JTCCO manufactures air filter, primary filter, medium filter, pocket filter, heap filter, dust filter, powder filter and so on 3004WB mini pleated air filter1) high efficiency,low ... in thicknes 4) low operating cost 5) each filter is individually tested 6) application: final or return ... 7) type: hp mini-pleat hepa filter 8) frame: aluminum 9) media: glass fiber paper 3004WB mini pleated air filter