We use Caputo Pizzaria flour. It is different than the more common Tipo 00 and is the one of the most popular pizza flours in Naples Italy. It comes in 55 lb bags, but this place repacks it to 5 lb bags. Glutton content really is important and this gets it right.

[Link: pennmac.com]

[Link: molinocaputo.it]

The same store has some great pepperoni

[Link: pennmac.com]