Some people cannot find all the potion IDs, so I made a list. I hope it helps!

373:16 Awkward Potion
373:32 Thick Potion
373:64 Mundane Potion
373:8193 Regeneration Potion (0:45)
373:8194 Swiftness Potion (3:00)
373:8195 Fire Resistance Potion (3:00)
373:8196 Poison Potion (0:45)
373:8197 Healing Potion
373:8200 Weakness Potion (1:30)
373:8201 Strength Potion (3:00)
373:8202 Slowness Potion (1:30)
373:8204 Harming Potion
373:8225 Regeneration Potion II (0:22)
373:8226 Swiftness Potion II (1:30)
373:8228 Poison Potion II (0:22)
373:8229 Healing Potion II
373:8233 Strength Potion II (1:30)
373:8236 Harming Potion II
373:8257 Regeneration Potion (2:00)
373:8258 Swiftness Potion (8:00)
373:8259 Fire Resistance Potion (8:00)
373:8260 Poison Potion (2:00)
373:8264 Weakness Potion (4:00)
373:8265 Strength Potion (8:00)
373:8266 Slowness Potion (4:00)
373:16378 Fire Resistance Splash (2:15)
373:16385 Regeneration Splash (0:33)
373:16386 Swiftness Splash (2:15)
373:16388 Poison Splash (0:33)
373:16389 Healing Splash
373:16392 Weakness Splash (1:07)
373:16393 Strength Splash (2:15)
373:16394 Slowness Splash (1:07)
373:16396 Harming Splash
373:16418 Swiftness Splash II (1:07)
373:16420 Poison Splash II (0:16)
373:16421 Healing Splash II
373:16425 Strength Splash II (1:07)
373:16428 Harming Splash II
373:16449 Regeneration Splash (1:30)
373:16450 Swiftness Splash (6:00)
373:16451 Fire Resistance Splash (6:00)
373:16452 Poison Splash (1:30)
373:16456 Weakness Splash (3:00)
373:16457 Strength Splash (6:00)
373:16458 Slowness Splash (3:00)
373:16471 Regeneration Splash II (0:16)

BTW, I made it bold so it's easier to see. ;D