DRYCHARGER WRAP; RP-5135/RP-5161, BLACK The K&N Drycharger? is a silicone treated, polyester wrap that is made to cover K&N Air Filters or Personal Watercraft Flame Arrestors. These Drychargers, which are similar to the K&N Prechargers, contain uniform micron sized openings that allow high air flow. Yet, due to the Drychargers silicone treated polyester wrap, the amount of water that reaches the air filter or flame arrestor is limited. Part RP-5135DK Product Specifications Product Style: Filter Wrap - Oval Tapered Wrap Type: Drycharger Color: Black Material Used: Silicone Treated Polyester Base Inside Width: 5 in (127 mm) Base Inside Length: 18.75 in (476 mm) Top Inside Width: 3 in (76 mm) Top Inside Length: 16.75 in (425 mm) Closed Top: Yes Height: 4.813 in (122 mm) Package Contents: 1 Drycharger Wrap Package Quantity: 1 Air Filter Shape: Oval Straight Weight: 0.06 lb (0.03 kg) Product Box Length: 6.5 in (165 mm) Product Box Width: 4.88 in (124 mm) Product Box Height: 1 in (25 mm)