Retired economics professor (“dismal scientist”). Married 40+ years to the love of my life; we have two grown daughters, both married, two granddaughters and a...
@kathyladley I regarded this post partly as a PSA ("public service announcement")! These are not inexpensive filters. They cost about US$20 each and last ~3 months (so that's about US$80 per year).
March 10th, 2023
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