Filter retainer, 3M 501, pkg of 2 PART NUMBER: CT 501 MPN: 501OTHER PART NUMBER(S): 501RESOURCES: Product Information $16.10 iWeb price Quantity discounts available QuantityPrice (0)No Reviews yet Special Order - Order Now Typical lead time: 2 days. Quantity -+ Add to Cart Print Details Used with 5P71 prefilter and 6000 series filters Details Back DetailsUsed with 5P71 prefilter and 6000 series filters Ratings & ReviewsNo reviews availableBe the first to Write a Review