I use Dawn to clean the grimy stuff, Oxyclean and hot water also (usually use generic -but either is fine if it doesn't contain any perfumes or other things like that). For the HERMS rig, when the sparge is done, I ramp up the remaining water in the HLT to boiling, and run THIS through the pipes (first I use a shop-vac to empty the tun, and clean the tun and false bottom) -that boiling water will rinse any sugars or other residue out of the pipes (or sanitize what ever doesn't get out).
You don't have to have the brand name of anything, just use your common sense and don't use abrasives on your SS or polished parts, make sure everything is rinsed clean and let it dry (I also open all the valves and fittings on the rig and let 'em drain before putting that stuff back together) in Florida we have a bit of a problem with dirt daubers (for those who don't know, they are black bugs that can be mistaken for wasps at a glance, but they don't sting or bite. They DO, however get into anything with a hole big enough for them to squeeze through and enclose it with a larva and loads of mud -makes it a real pain to clean and potentially damage seals etc. The trick is to either plug the hole with a pencil or something, or what I do is use a small length of clear rubber hose on my fittings -if they want to plug that up its not a big deal, and I'll know it. They don't go very far into their 'tunnel', usually about an inch into the opening.