Sound Insulating Door.
 
The Soundproofing Acoustic Door dBA PM40 is in metal finish, supplied with a double seal surround and lower threshold with an incorporated sealant system. With self-opening & manual closing system.Made from sheet steel with a dual chamber multilayer fire retardant absorbent core. Fitted with a European-style cylinder with a Yale-type lock. 
 
Sourced to order – availability confirmed after purchase. See Ordering & Availability below.