Guy Alcala
Contributor
The going rate in Monterey for a single fill is $6, although at least one shop charges $7.50 for HP (>3000 PSI) fills. Fill cards (typically for 10 or 20 fills) bring that down to $4.80 or $5 for LP/MP, or $6 for the one shop that normally charges $7.50 for HP. I'm in luck, as my local LDS has LP/MP fill cards at 12 fills/$30, or HP at 12/$36, i.e. $2.50 or $3/fill. This is the lowest price I know of in the S.F. Bay Area, and I generally just get an HP fill card and use it for all my tanks. Most other Bay Area shops come in at around $4-$4.50/fill with a fill card, or $5-$6 without.
Guy
Guy