They drop ship, pump probably came from supplier in Cal.
They line up suppliers who are willing to drop ship, with there MSAs return address and logos on package, its a common thing, They take a cut of the profit, but in saying that its not easy to put suppliers together with customers, when its your head on the line, Its not a easy business to be
in. Warehousing costs money, and that subtracts from the profit margin, and thats not a good thing, The internet is the King of drop shippers.
Find something everyone wants, make a deal to sell it over the net with supplier, and your in business, mark it up, and head to the bank, no stocking, no fuss no muss. Its a good thing. Most people dont check prices.
Of course Zers are a little different, were cheap, and proud of it.
MSA sells sunvisors for 149.00 each, and there not just like originals but close. 149.00 EACH, that what 300.00 plus shipping, Got a great pair, like new from the Yard, for like 4.00 each, when someone orders a pair they probably throw a office party.
As far as MSA rules.....What it rules is probably the question.
MSA is generaly a good company and has a nice little chunk of my change. They are a business and try to treat everyone the same. Some of the prices are a little higher then if you were to hunt for the parts at other places but, with MSA.. There's no hunting for the parts..
I recieved a header from them a while back and the box looked like it was a prop for a Samsonite comercial. The header looked about the same. Big gouges on the outer pipes. This happened through shipping. One call to MSA, a few questions later and it was handled.. The header I got was picked up and then replaced. It took about a few weeks to handle it all but, That's a given since I live kinda far from them.
They will do their best to treat you fairly.. Talk to Sam if you need some tech advice. He knows his fist generation Z's..