Latest 48+ Faucet Supply Extension Lowes. Amazon's choice for faucet supply line extension. Faucet supply hose extensions and adapters supply hose extension. Submitted 9 hours ago by accidentalmemory. Upon trying to install a new dishwasher (which i stupidly didn't think about the depth of as the space itself is very deep), i found that there are two faucet supply lines which exit the wall and run to the faucet.