Features Used for air filter inlet, can effectively block the dust in the air moisture Able to reduce the filter noise at work Greatly help to improve the efficiency of air filter and longevity Suitable for oil‑less air filter. Screw Thread Type: G1/2 Description:This is a great option for reducing the noise of your filter and is a great replacement option. Perfect accessories for air filters, quite easy to install. Used widely on the admitting port of air filters, can greatly reduce the noise of air intake. Features:1, Used for air filter inlet, can effectively block the dust in the air moisture. 2, Able to reduce the filter noise at work. 3, Greatly help to improve the efficiency of air filter and longevity. 4, Suitable for oil-less air filter.Specifications:Used for: FiltrationSuitable for: Oil-less air filter Screw Thread Type: G1/2 Weight: 100 g(approx.)Size: Approx. 50 x 50 x 20mm / 2 x 2 x 0.8in Package includes: 1 x Air Filter Package List