Overview Reviews Product Description Mikropor HG Compressed Air Filter. Model M-US-500 A RE. Replacement Element 0.01µ Activated Carbon. Product Videos Custom Field Product Line Mikropor HG Compressed Air Filter Filter Grade 0.01 micron Activated Carbon Product Reviews Write a Review Write a Review × Mikropor Mikropor M-US-500 A RE — Replacement Element/Kit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *