I think I've figured out every current element that does the same job as a type of wall. Here they are:
DTEC=detector wall
INVS=stasis wall
STOR=e-hole
VOID=absorb wall
DMND=aironly wall
NOTE: Whereas stasis wall is powered by electricity, INVS is powered by pressure. But their functions are the same. They both only become intangible when powered and capture, but not delete or absorb, any elements that gets caught when it is unpowered.
NOTE2: e-hole and STOR have way different capacities, but both absorb particles and release them when sparked.
Arrays of TTAN can be used as Block Air Allow Particle wall as well, with few limitation being TTAN is meltable and conductive element (heat and electricity).
How does INVS act like STASIS? STASIS outright stops elements from updating. They're not equivilant.
1: the type of wall you're thinking of is called airblock wall. And 2: TTAN, in most cases, only blocks pressure if it's at least 3 pixels wide. If it's 1 pixel wide it's similar to gas wall and if it's 3 pixels wide or wider it's similar to conductive wall. But it's equivalent to neither. It's meltable, it allows air to pass through when sparked, and it's more sensitive to ACID and CAUS than any other element is. And how did you manage to block air with empty space in between the TTAN? That's impressive.
See "NOTE" above.