Скачать или смотреть Cheap vs Expensive water filters. Do I really need to buy the expensive one?

Why are some water filters so much more expensive than others? We compare the best selling, recommended, expensive refrigerator water filter to a cheap generic filter. Is the expensive one worth the price? Link to the NSF testing site: http://info.nsf.org/Certified/DWTU/

Amazon Associate links
PUR
Everydrop Filter 1: https://amzn.to/2SnYZ9I
Everydrop Filter 2: https://amzn.to/3oMpi5N
Everydrop Filter 3: https://amzn.to/3oKob6w
Everydrop Filter 4: https://amzn.to/3oJdhxO
Everydrop Filter 5: https://amzn.to/2SoEFoZ
Generics
Filter 1: https://amzn.to/3xDzosC - 3 pack
Filter 2: https://amzn.to/34dS1qM - 3 pack
Filter 3: https://amzn.to/3fflsPq - 3 pack
Filter 4: https://amzn.to/2QNz2Af - 3 pack
Filter 5: https://amzn.to/3yCHiE0 - 3 pack

Disclaimer: I've not opened all these filters, just the two in the video. Be sure to read the product description and any reviews for the products you are considering.