From AF Supply
Specializing in HVAC (Heating, Ventilation, and Air Conditioning), PVF (Pipes, Valves, Fixtures), Industrial instrumentation, Faucets and Fixtures, and Control Systems. AF Supply Brooklyn houses the main corporate office as well as a fully stocked warehouse of a complete line of pipes, valves, fittings and heating equipment. Most commercial product is sold and distributed here through a counter operation and delivering daily throughout the tri-state area. Our client base extends from the City of New York to small general contractors. Sales consultants experienced in commercial plumbing and heating product are always on staff to serve you.
Google: 3.4/5 
BBB: A
Had to do a return on my A.O Smith water heater, and was done quick by Nacim who was a professional over the phone and helped me out to get a replacement asap. Now my issue was that Nacim was vague on the process of the return, he just emailed me a Brooklyn address. That’s it! So I had my guy take the old water heater over there and when my guy go there they said all they needed was the sticker! Also, they charged me $220.00 fee? I have no idea for what? I mean they had the replacement so I needed it right away.
Af has great prices. Af needs a customer service company to come in and do lots of cleanup work. You have to wait too long for your products. No structure leads to poor efficiency. Remember online ordering is big. Supply house and others. Some customers may opt out of returning. Small lost revenue at the end of the years add up
They have the boiler parts and plumbing supplies you need at an excellent price and a very courteous staff. A mistake was made with my order which was delivered free and promptly, called and spoke with Warren who then hand delivered the parts to my home in Astoria NY, the very next day! Thank you Warren! I highly recommend this company for all of your plumbing and boiler parts needs!!