CRL 3/16" Round Metal Caulking Gun Nozzle Butyl Rubber Sealants and it is non-corrosive to

and it is non-corrosive to most building materials such as glass (including insulating glass)

It is also appropriate for general construction applications

It meets or exceeds Federal Specifications: TT-S-001543A (COM-NBS) for silicone building sealants Class A

This is our most popular sealant

Capacity: Holds 23 standard cartridges

CRL 3/16" Round Metal Caulking Gun Nozzle Butyl Rubber Sealants and it is non-corrosive toVariety of Diameters and Configurations to Fit Bulk Load Caulking Guns These CRL Metal Nozzles fit most bulk caulking guns, such as KM32RCT, KM45RCT, DL45T03, DL45T04, or others having a 3 8" 27 thread in the barrel cap. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer's video card and on how your monitor's color is adjusted. Installation Instructions