Thank you, I really appreciate the compliment! I certainly am proud
I forgot to mention... I switched the 1-1/2" diameter pipes for 4" diameter ducts for dryer exhaust. It really improved airflow for sure. That's what led me to purchase one of these 4" inline blowers... and will probably be purchasing a second soon to replace my 4" CPU fans.
Which reminds me... anyone want to trade me something for some barely-used 4" CPU fans