I`m trying to decide between the 12 gallon 5hp model (WD1245) and the 4 gallon 5hp (WD4050). Besides the size I want to compare these units. Price is the same I think ($70). In terms of features (eg. blower function, diameter of tubing, etc) are these units the same? If the 12 gallon model had a 10 amp motor vs a 9 amp in the 4 gallon model does that mean it has more suction or lift? Does one have more attachments that come standard (I`m aware that there are accesory kits). Do they use the same filter?
Also I`m a little confused. When I did a search a few posts came up that discussed the unavailability of an 1 7/8" to 1 1/4" adapter. My understanding is that most attachments are made to fit units that use 1 1/4" tubing. But doesn`t the vac and the kit made specifically for the models using 1 7/8" tubing come with everything you could possibly need like crevice tools, brushes, etc.?
Any input would be a great help. Thanks.
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