4x24 sanding belt recommendations

[newbury]

I'm in need of a supply of belts to do a pool deck and a porch, probably about 1,500 sq ft. I'll probably need at least 10 (36 grit) depending on how many I tear up so I'm trying to trade off longevity and price.
I've been impressed with the 3M Cubitron but I couldn't find belts for 4x24.
I've tried "off brand" belts and discs and have been really disappointed so I'm willing to go "brand name" up to a point.
Klingspor (whom I've used before ) sells a 5 pack of "bargain box belts for $8, a Y for $5.56@. HD sells what seems a comparable Diablo 3 pack for $18@.
So any TBN recommendations?

 

[JimRB]

I have bought other products from Benchmark Abrasives. I cannot vouch for their belts but disks and such have been fine for me. https://benchmarkabrasives.com/collections/sanding-belts-4-x-24