Interesting.
I like the simplicity, and the lower height/width.
I'm still going to go ahead with mine: it has many clear parts, for a visual observation of the flow.
I'm re-doing the airtrap, out of 3/4 pieces and 1 inch OD tubing. Here's a pic of the original one, out of 1 1/2 fittings, and 2 inch OD tubing:
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