Middle fitting for RodLaird's Rep2/2X Scrubber for use with Neiko Respirator Cartridge

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I wanted to try RodLaird's Rep2/2X scrubber design, but here in the USA, the specific cartridge he used isn't readily available. tempo502 mentioned a Neiko respirator cartridge available on Amazon, which had slightly different dimensions. You'll need to print some of RodLaird's original components, so please read the instructions. Your mileage may vary, proceed at your own risk. I make no statements to the effectiveness or safety of this air filtering device. Instructions Print this middle fitting Load RodLaird's original fitting plate into Netfabb Basic or some other tool that lets you slice it up. Slice the original plate into three components. Print the original exhaust-side fitting at 100% Print the original cartridge inlet fitting at 103% Don't print the original middle fitting, since you're using this redesigned which you printed in step 1. Print the rest of RodLaird's original design, including the base, and exhaust duct.