Kason K55 Series Walk-In Safety Latch and strike complete With Flush Offset K55-CA01 (Includes inside release K55-IR) Reliable, self-closing action provides positive air-tight closure with little effort Releases with minimum pressure or pull from outside or from insided with Kason inside release handle Works effectively with Kason door closers. Econiomical, Adjustable solid head strike. Improved design provides freater frost resistance.