I buy mine from here: http://www.jpscorner.com/airtite-coin-holders.html
Paulson and TRK chips fit well in the 39mm holders H39). ASMs generally require the 40.6mm size (H40).
Without checking prices, why don't people order direct from air-tites.com? The resellers are cheaper???
^^^ +1I bought most of mine, along with other chip collecting supplies such as coin tubes, cardboard flips, vinyl flips, and binder pages, from jpscorner when they offered a discount, which they do from time to time. It's been a couple of years. They do still offer discounts from time to time.