Maximal Power 67mm Circular Polarizer Filter/CPL Filter Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty Maximalpower brand CPL Filter, 67mm, Circular Polarizer Filter/CPL filter Maximalpower Brand is one of top selling brands for replacement batteries at amazon.com for Straight three years backed with 1 year warranty and $7 million product liability coverage