Federal Signal Highlighter Filters

This is a combination question and “wanted post.” This is an amber filter off a FS Highlighter. I’m looking for two blue ones and I’m also curious does any other bar use this type of filter?

 

[Firefighterhtfd]

They will also fit street hawk light bars along with other federal signal beacons

 

[Lt.214]

Federal signal SPL2-B is the part number. Some for sale ads might list them that way. Info only

 

[EHFD_Tower_751]

Aerodynic with aerohawk rotators
Highlighter bars
Model 100 beacons
Streethawk rotators
Sentry beacons they could fit