Can the LCN 6440XP compact operator be used with cylinders other than the 4040XP?

No, the LCN 6440 compact operator is designed for the 4040XP (standard or delay) cylinders only, using it on other closers with similar spindle with void warranty and certifications.

  • The older 4041 can be used, but it is not recommended as older 4041 closers are all out of warranty

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