The R-190 and R-380 used the smae parts on the inside of the housing, the only difference is the actual size for the regs. I would stay with the R-190 and spend the money on other nescesary items. You might also wnat to look into "H" valves. With this purchase, you can simply add the "isolation cross bar" when you are ready for doubles. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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