I had not disassembled mine yet in case no parts were available.
Ok.
i see where this thread is going.
there's apparently a whole lot of people out there with real low expectations and real low job qualification and work ethic.
bundle all that up.. and no wonder we import everything and the staus quoe is so low.
thread's been an eye opener.
people are very tolerant of substandard service.....
First -- Lowes/Home Depot are "parts stores" not "parts and service" stores. And, no matter how competent the person in the plumbing aisle is, he/she has not seen everything. Some plumbers have spent their life in an industrial setting and can tell you exactly what fittings to use on 6" diameter commercial steam pipe. But they have no idea what size O-rings/cartridges fit into your Delta faucet of unknown vintage and origin. Expecting that Lowes has a 24x7 "faucet rebuild kit expert" on site with unerring product knowledge across a wide variety of fixture manufacturers is tad unrealistic.
Second -- Moen, Delta, and so on sell different types/styles/grades of faucets via different channels -- big box stores versus general plumbing supply versus fixture specialty stores. Do the various parts interchange? In some cases yes, in some cases no. My brother-in-law is a master plumber and has story after story of this. Although they look similar, the AO Smith brand water heaters which Lowes sells are NOT the same as the AO Smith models you get from a plumbing supply house. Do the thermocouples interchange?
Third -- you didn't bring anything for the person in the plumbing aisle to work with, and you expected through some kind of remote telepathy that he/she would know what type, style, grade, etc of faucet you had and what rebuild kit was needed? Really? If your description was errant or omitted just one aspect you'd be complaining right now about how the person at Lowes handed you the wrong rebuild kit.
Finally and probably most importantly -- the Delta website (and other self-help/DIY websites) have tons of cross-reference tables and what-not that document which rebuild kit is suitable for which faucet. In the time it took you to write the rant in your top post you could have found out EXACTLY what kit was needed (including the OEM Delta P/N) and been standing in the Lowes aisle holding one with complete confidence that it would fit. For that matter you could have been having a beer on your deck at home, and UPS would have delivered one to you in short order for less than you could have bought it at Lowes plus the cost of the gas to drive there.
Summary: you ***** about sub-standard service in big box stores but in my eyes you have to realize first off that you have to help yourself. A trivial amount of effort up front (90 seconds in Google) and you would be enjoying a non-leaky faucet right now instead of being all frothed up that Lowes -- it turns out -- is operating in the same capitalistic model you do: minimize costs and maximize revenue.
Consistent with the other responses, this thread did not go the direction you intended.
Wrooster