i would make this iso raise vs 1 limper, but not 2 ... just too likely to play a pot too big oop w/ a weak hand, like pelion said.

that being said... the flop nails a limper's limp/call range, and the turn just made a couple of draws they are likely to be holding. u get value from nothign by betting, so essentially its a bluff.....think this is an easy c/f. ...