Loading... Please wait...These 2.5" surface mounting clips can be used to mount a 2.5" inline water filter cartridge such as http://urwater.com.au/products/Omnipure-K5505-inline-sediment-filter-cartridge-2.5%22-x-10%22.html or for mounting a 2.5" reverse osmosis pressure vessel onto a surface. Comes with 1 screw per clip and is sold as a pack of 2 clips.