NF Corp P-87 Filter Cut-off Frequency : 1Hz to 20kHz Rolloff for MS-500 SeriesCondition New Brand NF Corp Type Filter MPN P 87 Country Region of Manufacture Japan Product Description Product appearance: 80% 99% New Functional test: Normal We have 8 units of NF Corp P 87 Filter Cut off Frequency : 1Hz to 20kHz Rolloff for MS 500 Series. Pictures shown are for reference; we ship randomly. Please contact us for real product images. Due to the second hand nature of the product, minor scrapes or scratches may occur. However, all