I don't know if they make anything that would be more effecient or not but you could simply add a wye under the sink and reduce the angled opening down to your tubing size.
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150 gal Custom. Born 5/7/07. 50gal, 29gal, 20gal Sumps. 30gal Frag Tank. ETSS 800 Skimmer, Deltec APF600 Skimmer. PFO Solaris Lighting on Display and Frag Tank
My Tank Thread