Engine auxiliary adapter come with filter, which is an important auto parts, useful and practical Specification: Item Type: O2 Oxygen Sensor Adapter Model: M18 x 1., 5 Material: 304 stainless steel Purpose: Check exhaust Color: Silver Package List: 2 x O2 Oxygen Sensor Adapter The product is designed to better meet your needs in checking exhaust and engine lights Installation is quick and easy, bolted design provides quick and easy installation 2Pcs Oxygen Sensor Adapter, Welding Plug Motor Extra With Filter Auto Parts Spark Plug Non-Foulers M18x1.5 CAR AUTO PARTS Spark plugs Methanol engine parts Spark head Flame Oxygen Sensor Adapter Spacer 02 Sensor Car CEL Fix Check Engine Light... Made of stainless steel, this 2pcs Oxygen Sensor Adapter is designed for durability with crack resistance, corrosion resistance, and heat resistance. It features a bolt-on design for quick and easy installation, making it ideal for checking exhaust and engine lights