OPTIONS / ACCESSORIES
Item Description
Catalog 
Number
Unit Model No
156 180 210 240 300
INDOOR AIR QUALITY
Air Filters
®
 
 54W67 OX OX OX OX OX
 52W40 OX OX OX OX OX
 21U42 OX OX OX OX OX
 
 44N61 X X X X X
Indoor Air Quality (CO) Sensors
 77N39 X X X X X
 87N53 X X X X X
 87N52 X X X X X
 87N54 X X X X X
CO 85L43 X X X X X
CO2 sensors 
87N53 or 77N39
90N43 X X X X X
Needlepoint Bipolar Ionization (NPBI)
 21U37 OX OX OX
21U38 OX
21U39 OX
UVC Germicidal Light Kit
1
®
 21A94 OX OX OX OX OX
  10H20 X X X X X
ELECTRICAL
  Factory O O O O O
 Factory O O O O O
 Factory O O O O O
 
 54W85 OX OX OX OX OX
 54W86 OX OX OX OX OX
 54W87 OX OX OX OX OX
 Factory O O O O O
  74M70 OX OX OX OX OX
 Factory O O O O O
 10C89 X X X X X
1
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