Arlen Ness AN-18-062 Rain Sock (Pre-Filter) for Inverted and Method Air Filter KitsDescription for Arlen Ness Method Clear Series Rain Sock 18 062 Fits all Method Clear Series Air cleaners Helps Prevents Moisture from Reaching Filter Element Included Items: (1) Black pre filter sock rain cover No instructions Product Specs for Arlen Ness Method Clear Series Rain Sock 18 062 Part #: AN 18 062 Mfg #: 18 062 Color Black Type Sock Filter Units Each Weight 0. 05 lbs