Check out these two stores:
This one has a lot of silicon connectors:
http://stores.ebay.com/Aileron-Forge
This one has a lot of stainless mandrel bends, and aluminum tube, but is kind of pricey. I got a few things from them, they ship quickly and sell quality components. The stainless pipe bends I got were made in Sweden.
http://stores.ebay.com/VertexNow
Also do searches on ebay for the stuff you need, it can be a lot cheaper than the stores.
This one has a lot of silicon connectors:
http://stores.ebay.com/Aileron-Forge
This one has a lot of stainless mandrel bends, and aluminum tube, but is kind of pricey. I got a few things from them, they ship quickly and sell quality components. The stainless pipe bends I got were made in Sweden.
http://stores.ebay.com/VertexNow
Also do searches on ebay for the stuff you need, it can be a lot cheaper than the stores.