Stocking a store or a service vehicle has become more expensive over the years with the introduction of new products and tools available to the locksmith. However, every once in a while, a change occurs that can save space and money. Sargent has made such a change to the 1431 Series Powerglide door closers, eliminating the need to stock the Sargent 1430 Series door closers. The new Sargent 1431 Series aluminum bodied door closers are fully adjustable from sizes one through six, enabling on-site spring power adjustment to accommodate the closing requirements of most interior and exterior door applications. This new 1431 Series door closers can be identified by the 1431+ marked on both the end cap and the shipping label.