Hi anchorman,
The only significant “missing layer” in your previous description was the 2" layer of high resilient foam and the information they provided confirms that it is 2.5 lb density which is a very high quality and durable material that exceeds the guidelines here.
So the layers from top to bottom are …
1.5". Of 1.5 density foam and a 3/4" rayon fire barrier quilted to a Culp polyster stretch knit cover
2" high resilient 2.5 lb polyfoamfoam 21 Lb compression
1/2" polyfoam 21 lb. compression
Grey gloth
8" pocket coil 1155 coils 15 ga wire
Grey cloth
1/2" polyfoam 21 lb. compression
2" high resilient 2.5 lb polyfoamfoam 21 Lb compression
1.5". Of 1.5 density foam and a 3/4" rayon fire barrier quilted to a Culp polyster stretch knit cover
Overall these are all materials that are suitable for a two sided mattress and there are no weak links in the design so if it’s a good match for you in terms of PPP then it would certainly be well worth considering.
Phoenix