Product Overview
LCN 4631-3971 689 Cylinder Only, Aluminum Finish
- Standard, non-handed, cast iron cylinder assembly for 4630 Series
- Adjustable from size 2 through size 5 (shipped set to size 3)
- For exterior doors 36"-42" and interior doors 36"-54"

| Brand | |
|---|---|
| Finishes |
689 Aluminum (Powder Coated) |
| Part Type |
Closer Body |
| Body Construction |
Cast Iron Body, Full Complement Bearing, 1-1/2" Diameter Piston, 3/4" Diameter Double Heat Treated Pinion Journal |
| Fluid |
All Weather Fluid |
| Handing |
Non-Handed |
| Spring Size |
Adjustable Spring Size 2-5 |
| Buy American Act Compliance |
Meets Buy American Act - Made in USA |
LCN 4631-3971 Cylinder for LCN 4630 Series Auto-Equalizer