Deal
It's very possible that there are other deals on other colors at this listing, but i'm not seeing them.... so let's focus on Grey PLA, which looks to be the only option that has free shipping, and ...
Coupon
Price after $16 off from Spend and Save (auto applies), 15% off seller discount (auto applies), and code BFUS10 at checkout.
BFUS10
Coupon
Price after $8 off from Spend and Save, and code USAFF6 at checkout.
USAFF6
Deal
If you're just getting the 2 pack, there are no codes needed - Spend and Save takes off $8 automagically, so just clip the $1 off coupon on page.
If you're going for 2x2 pack, $8 comes off from ...
Coupon
Price after $16 off from Spend and Save (auto applies), $10 off store coupon (copy/paste SQPQHWC at checkout), and code BFUS50 at checkout.
BFUS50
Coupon
Price after $16 off from Spend and Save, $10 off store coupon (copy/paste TXJGFTE3 at checkout), and code BFUS10 at checkout.
BFUS10
Deal
Price after $8 off from Spend and Save, and $20 off store coupon (clip on seller's home page, or copy/paste 7EBUU3QY55C2 at checkout).
Deal
I'm typically the first one to preach patience when it comes to big ticket items during AlEx sales.... large codes tend to come out mid-sale, so it makes sense to wait.
However....
This is not ...
Coupon
Price after $16 off from Spend and Save (auto applies), $2 off seller discount (auto applies), $60 off store coupon (clip on seller's home page, or copy/paste M7IH8UUFI2D3 at checkout), and code ...
BFUS50
Coupon
Price after $16 off from Spend and Save, $100 off store coupon (clip on seller's home page, or copy/paste VLBAGT5CJMZO at checkout), and code BFUS20 at checkout.
BUS20
Coupon
Price after $16 off from Spend and Save (auto applies), $10 off store coupon (copy/paste code TXJGFTE3 at checkout), and then use USAFF6 at checkout.
USAFF6