This oil filter adapter simply screws in between the oil filter housing and the oil filter to allow the use of the commonly available -on type oil filters -on type oil filters provide better filtration and flow due to the larger internal area. Due to the high-quality aluminium construction of the adapter the engine oil is cooled better during operation The on type oil filter helps reduce the engine wear by retaining particles smaller than 20 microns The oil filter additionally has a double check valve, which prevents the oil in the upper oil circuit from flowing back into the oil pan when the engine is shut off. Color: Picture Color Material: Aluminum Alloy Package Contents: 1*Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.