1 1/2" full flow ball valves.
Apollo does in fact make full port ball valves, at least for non-marine use (plumbing and heating). You are probably correct though, most of the common valves I see are not full port. I seem to remember what makes Apollo (Conbraco) valves different for marine use, the handle material is different. I use a lot of them at work, they are a superior ball valve for land use.
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