HEPA Replacement Filter for NSA Models 7000 & 7100 Air Fitlers

Seems to be an exact replacement for original. Main filter of NSA 7000 series Hepa filter. My original ran nearly 15 yrs/ 24 hrs. a day. Amazing lifespan. No foam rubber gasket on internal side of this replacement filter where the filter seals with the NSA body. Original black gasket had decomposed into a black gooey mess, hard to remove from filter and NSA unit. I used foam weatherstripping on the replacement. Overall recommended for a unit that has an amazingly durable motor.

Product needs some additional foam to seal it to the rear of the cabinet. Filter element is not recessed as much as original it hits some plastic that protrudes from the center rear of the enclosure. Good fit other wise.

This is a good filter. We change it once every two years. The difference in weight between filter and the used one is remarkable so I know it takes a lot of particulate matter out of the air.

Item is as described and shipped fast. Would buy again.

great！