You are right. The 3/8" gets reduced to what looks like 20' of 1/4" tubing. What exactly does the 'choke' do? Reduce foaming?Those look like 120' coils based on the change in tubing size from the back to the front. I think its 100' of 3/8" and a 20' section of 1/4" as a choke. So each coil new would be about $180...ive been checking out coils for a build.
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