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					Originally Posted by  The Grizz
					 
				 
				The NextReef MR1 has 1/2" barbs and works great. 
			
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 The MR1 has 1/2" barbs that is correct. I did mod my MR1 to run pellets as well. It does work great but it's not until I switched to a SMR1 I noticed a big flow difference. Of course I ran it with the same pump, it just seems to have less pressure built up inside the actual chamber rather than flowing through it. Don't get me wrong, when I was running the modded MR1 it worked just fine.