I noticed some odd pricing yesterday as well on a rain gutter mod for a rain barrel.

1 mod was like 18 bucks, but the 2 pack was 180. the 3 pack was like 150. The 4 pack was like 181.

Made NO damn sense. lol

(edit)

Numbers are a bit different today, but still wonkey.

https://smile.amazon.com/gp/product/B003E1RJVU/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1