Usage Tips:ractical Package: every purchase includes a package of 10 inline filters; Boosting the value for your money, these filters are made to supply you with fresh air for an extended time; Material: our Universal Inline Filter is made from sturdy plastic that will provide excellent service; This material ensures a durable filter that effectively performs its role without breaking easily; It also features a size of 6.5 x 9cm/2.56 x 3.54 inches, making it a perfect fit for most machines Exceptional Features: integrated with excellent features, our inline filter offers low resistance and high permeability; Furthermore, it is naturally hydrophobic, ensuring blocked moisture will not compromise your machine's function; An ideal filter for 22mm or 25mm tubing filter machines, it ensures fresh air every time it's in use Compatibility: this inline filter is specifically designed to be universally compatible; Whether you're using a 22mm or a 25mm machine, this inline filter seamlessly fits, providing efficient operation and fresh air Easy Installation: this universal inline filter is easy to install; Just connect the filter between the machine's air outlet and the duct; Please note: our filters are products with a lifespan of 4 weeks and need to be replaced regularly Colour: parent Material:plastic Package Contents: 10 * Inline 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.