Greentek / Imperial / Generalaire Part # 101813 / 4620 / HF500 / MSCFTR11 / RHF562 HEPA Filter.
- Part # 101090 / 4610 / ARK564 / HMK500 / MSCFTR10
- Pleated media prefilter with integrated carbon pad 12 x16 x 2. Fits all Greentek and Imperial Group HEPA air cleaners. Installs in the top filter slot closest to the air intake.
- Actual Size 11 1/2" x 15 1/2" x 1 3/4"