Alright so my big question is what lily pipes should I go with for my Eheim 2211 Canister Filter? I have been doing some research online and honestly the ADA and Do!Aqua pipes are too expensive. I found this site where I can buy both the inlet and the outflow pipes for as much as one lily pipe from ADA. However the problem is, is that for this filter there are two different sizes hoses. The measurements are 9/12 mm for the outflow hose and 12/16 mm for the inlet hose. Which means I will need lily pipes measuring at 10 mm for the outflow and 13 mm for the inlet for a tight seal. This is the site that I would like to buy both pipes from however they come in the same sizeshttp://www.aqmagic.com/accessories-l...-c-51_108.html I'm looking for a hose connector that I can splice the two hoses that come with the filter so I could just buy the same size lily pipes. I would like to get the 9 mm set... http://www.aqmagic.com/lily-pipe/mag...ipe-p-293.html So my question is does anyone have any suggestions to what I could do or have had this same issue and have found a hose connector to fit the same size lily pipes. I really don't want to spend over a $100 on one lily pipe. Thanks!