You might consider purchasing the 6000's. If you want additional flow, you can purchase the transformer that will make the 6000 a 6100.
If you go that route, you save a few bucks and have a backup transfomer. Premium Aquatics has the 6100 priced at $332.94. A 6000 costs $259.96 and 6100 transformer is $66.96 for a total of $326.92. You save $6 and have a backup transformer.
BTW, I have 2-6100's but with a bare bottom in my 110 and the flow is where I want it.
HTH
David