Caleffi NA553369 Boiler trim Kit 1'' Sweat 4.4GAL With ASSE 1012 Back Flow

Description

The NA553 Series Boiler Trim Kit has 10 configurations that combine 8 common boiler installation components into one simple package.

Kit Includes:

• 551028A: DISCAL® Air Separator (1" Sweat connection)
• 573009A: AutoFill/Backflow Combination (1/2" Sweat connection)
• 561402A: Expansion Tank Check Valve
• (2) Brass Nipples
• 3" Brass Nipples
• NPT Brass Tee
• Expansion Tank (4.4 gallon)