Schneider B+W Circular Pol KSM 72 mm MRC Filter | eBay
Amazon.com : B + W Circular Polarizer Kaesemann - Standard Mount (F-PRO), HTC, 16 Layers Multi-Resistant Coating, Photography Filter, 72 mm : Electronics
B + W 72mm F-Pro Kaesemann HT Circular Polarizer Filter, MRC Coating #66-1081901 | eBay
B+W 72mm Circular Polarizer MRC Filter 66-044843 B&H Photo Video