Brass faucets may be purchased from a variety of online realtors. Home Depot, Lowe's, Moen, Newport Brass, Overstock and Wayfair all carry brass faucets.
You can put an aerator wherever there is threading for one.--I'm not sure of your description "brass faucet valve". - The end of the spout is generally threaded for an aerator.
One could purchase parts for a Grohe faucet by going to the Grohe website. The website can be used to purchase faucet parts directly from the Grohe manufacturing plants.
You can purchase a pull out faucet for your kitchen online from stores such as The Home Depot. Alternatively, you can also purchase these faucets from retailers such as Amazon.
There are many places where one can purchase a faucet for a kitchen sink. One of the popular home improvement businesses to purchase a kitchen faucet would be Lowes, they offer personal one on one help with getting the right faucet for the house.
If you are looking to purchase a widespread faucet for your kitchen or for your bathroom, you have some options. You can find one at Bed Bath and Beyond, Home Depot, Overstock, and Lowe's.
www.overstock.com is a great website for finding items online. Search for "brass kitchen faucet" on this website and you will find many options at affordable prices.
One can purchase a brass boot from these retailers: Brass Boots, Dillards, Peltz Shoes, The Shoe Mart, Amazon, eBay, Famous Footwear, Fish Pond, Shoes, Direct Buy, Sears.
There are several different places where someone could purchase a Danze kitchen faucet. Someone could buy one at the Home Depot, or order one online from sites like danzefaucet, or efaucets.
Brass will oxidize and turn greenish. Moen and Delta have PVD brass finishes which are more resistant to corrosion.
There are a number of online websites where one can purchase replacement parts for a Delta faucet. Some of these websites include Delta, Faucet Depot and Amazon.
Commercial kitchen faucets are made of solid brass and triple-plated with chrome. A website that you may want to visit to purchase this type of faucet is Overstock.
One can purchase brass stair rods at many local stores including Lowe's and Home Depot. One can also purchase them online at eBay, Amazon, Signature Hardware, and other online stores.