I got my cover from here:
Winterizing Products for Home Winterization. I called and ordered over the phone, seemed like to good of a deal and wanted to make sure everything was included. I could have also ordered a custom cover since my stairs are 4 foot wide and not the more common 8 foot. Cost was only a little more, but I was more in a time crunch and did not want to wait. For a 20 x40 with steps it was around $1500 last year, looks like it has gone up a little. For a Merlin or Loop-loc installed it was $4k-$5K i think.
I got the the Block Mesh 99. It seems like a good quality and the material seems as heavy and thick as a Merlin and Loop-Loc (these are made within walking distance of my house) based on the samples from them.
It was pretty easy to install. Planning on where to drill holes and a little bit of crossing my finger when I was in a area where I wasn't exactly sure how deep return lines were (I was pretty sure they were deep enough, but still concerned). Could have done 5 - 6 hours by myself, but took a few days after work.
All the hardware was included and seemed like good quality. The stainless wasn't magnetic (so it should not rust and has not after one season).
- cover (it's pretty heavy, guessing 50-60 lbs dry, and more wet and awkward to get into the bag)
- anchors
- springs
- lever to get springs on anchors
- allen key
- aluminum mandel to set the anchors (this got pretty beat up, most of the anchors needed a good hammering to set them)
- bag to store cover - plenty big to store the cover, almost to large, but does make it easier to get the cover in)
- instructions (pretty basic but could have done it without them)
I had all the tools and bits needed already. I only bought a longer hammer drill bit to speed up drilling into the slab under the pavers. The core bit I had was slow going.
I think I had a few more anchors to install.

Inspector making sure it works

I think they were 10 inches long

the springs have a 2 - 3 inches of travel
This is how it came, box was beat up but everything was in is and everything was fine.
