Life Safety

4" Octagon Life Safety Extension Ring, 2-1/8" Deep - Drawn W/Conduit KO's And Fixture Ears 3-1/2" O.C.

SKU: 55171-RED Model: 55171-RED
Octagon extension rings are added to junction boxes to increase wiring capacity and provide access for additional conduit runs and electrical wire. Extension rings prevent the need to remove old conduit boxes and wiring from circuits when additional capacity is needed.

Features & Benefits

  • Extension rings are painted red to distinguish them as fire alarm circuits
  • Combination Phillips/Slotted screw heads.


Stock # 55171-RED 55171-RED
Model # 55171-RED 55171-RED
UPC # 785592116123 785592116123
Product Weight 0.456 0.21 lbs kg
Weight UOM LB LB
Box Depth 2-1/8" 2-1/8"
Color Red Red
Cubic Capacity 21.5 (352.3) 21.5 (352.3)
Knockouts (2) 1/2 in. and (2) 3/4 in. Side Knockouts (2) 1/2 in. and (2) 3/4 in. Side Knockouts
Size 4 in. 4 in.


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