hello new to AB, but I am having trouble finding a good brand that sell the air regulator and water trap for my compressor. I have looked at amazon and ebay but there seems to be plenty of knock offs. I just bought a new brush but I don't want to ruin it by buying a cheap air regulator/ water trap. Any suggestions? Also is a water regulator same as a moisture trap? and will that be all I need for my compressor to work? thanks.