What Comes in the Box, and Where the Official Instructions Are
The fire pit table listings name their contents: lid, wind guard or shield, lava glass or glass rock, hose and cover. The propane tank is not included. Assembly instructions come from the manufacturer with each product; this site doesn't republish them.
Fire pit tables
44 in (gray, brown): wind guard, lava glass, cover, lid and connected hoses; a standard propane tank fits inside the base but is not included, per the manufacturer.
42 in: aluminum lid, 9.8 ft hose, tempered glass wind shield, glass rock and cover, per the manufacturer.
Sets
Set listings name the pieces in the title and the features rather than a box list. The 9 piece rope wicker sectional notes that an order may arrive in several shipments on different dates. Sets with a fire pit table describe the table's burner and ignition, not its accessories - check the current listing.
Instructions
Assembly, gas connection and placement are covered by the instructions supplied with each product. This site does not publish assembly steps or safety distances; follow the manufacturer's instructions and any local rules for propane appliances.
Questions
Is the propane tank included?
No listing says it is. The 44 in table's listing states it is not included.
Can I get the manual online?
Ask the seller through the product's Amazon listing; this site does not host manuals.