Amazon.com : NEEWER 72mm Polarizer Filter 30 Layer Multi Resistant Nano Coated Circular Polarizing Filter(CPL) with HD Optical Glass/Ultra Slim Frame, Reduce Glare/Enhance Contrast/Reduce Reflection : Electronics
K&F CONCEPT 67mm 2-in-1 Variable Adjustable Filter Neutral Density Fader 5-Stop ND2-ND32 and CPL Circular Polarizing Filter Ultra-thin with Cleaning Cloth for Camera Lens - Walmart.com
Amazon.com : PROfezzion [2 in 1] 82mm ND Filter [ND2-ND32] and CPL Polarizer Polarizing Filter, Variable Neutral Density Adjustable Fader with 5 Hard Stops for Canon/Nikon/Sony/Fujifilm/Tamron/Sigma Lenses : Electronics
Nikon Circular Polarizer II Filter (112mm) 4252 B&H Photo Video
Circular Polarizer Screw-In Filter - 25CP – The Tiffen Company