<https://jahnkeelectronics.com/product/yk-88a/#product>
<http://schema.org/description>
"YK-88A Filter tested and delivered to your door.   Filter has a center of 8,831.5 kHz and a passband of 6 kHz.  Fits in Kenwood TS430 and others.\r\nFree shipping applies to customers in the USA and please email for shipping rates elsewhere.\r\nShipping US Postal Priority Mail - two day service to the continental US"
<https://jahnkeelectronics.com/product/yk-88a/>