Amazon.com : Sigma 16mm f/1.4 Contemporary DC DN Lens with 3 UV/CPL/ND8 Filters + Flash + Diffuser + Soft Box Kit for Sony Alpha E-Mount Cameras : Electronics
HYDAC Filter Elements - Type DN for DIN Spec. 24550 Filters On HYDAC Technology Corporation
Honda DN-01 700 (08-09) DNA Air Filter - OEM Air Filter Air Flow: 133.70 CFM, DNA Air Filter Air Flow: 199.20 CFM - P-H7SC09-01 - DNA Filters - Product Details
Donaldson Element Oil Filter | # DN 23530573 | Tracey Truck Parts
Using Neutral Density Filters with the SIGMA 14-24mm F2.8 DG DN Art Lens | SIGMA Blog
16254 - In-Line Stainless Steel Filter Holder, 47 mm, 20 bar, DN 10 | analytics-shop.com