Thanks in advance for any information you can provide related to the identification of the washer / gasket shown in the pictures below. This came out of the end of a preinstalled water supply line for a bathroom vanity faucet. I bought a new faucet and one of the lines was missing a gasket. I've had the faucets for a while and I think I'm beyond my return window because I was working on the bathroom and finally got around to installing the faucet in our new vanity.
I'd like to buy a replacement so I can put the faucet in service. It is a 3/8" compression fitting on the end of the water supply line for a Delta 15891 faucet. I assume it will be easy to find what I need once I know what it's called. I've searched a fair bit on the internet and haven't come up with anything. It is a different gasket than what you find in the end of a 3/8" compression fitting on a replacement water supply line.
I'd like to buy a replacement so I can put the faucet in service. It is a 3/8" compression fitting on the end of the water supply line for a Delta 15891 faucet. I assume it will be easy to find what I need once I know what it's called. I've searched a fair bit on the internet and haven't come up with anything. It is a different gasket than what you find in the end of a 3/8" compression fitting on a replacement water supply line.