Boiler trim kits (with RPZ backflow preventer)
Product Description
Boiler trim kits (with RPZ backflow preventer)
This kit includes:
- (1) Caleffi DISCAL® air separator;
 - (1) Backflow preventer:1/2" NPT, sweat or press union;
 - (1) AutoFill™;
 - (1) Expansion tank check valve;
 - (2) Brass nipples: 3";
 - (1) NPT brass tee;
 - (1) Expansion tank.
 
6 configurations combining 8 boiler installation components in one box. 
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Drawings and specifications
| Part number | Connection | Note | |
|---|---|---|---|
| NA553362R | 1" FNPT | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553362R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" FNPT. 
                     
                   | 
        |||
| NA553366R | 1" PRS press  | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553366R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" PRS, press. 
                     
                   | 
        |||
| NA553369R | 1" PRS sweat  | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553369R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1" PRS, sweat. 
                     
                   | 
        |||
| NA553372R | 1 1/4" FNPT | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553372R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" FNPT. 
                     
                   | 
        |||
| NA553376R | 1 1/4" PRS press  | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553376R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" PRS, press. 
                     
                   | 
        |||
| NA553379R | 1 1/4" PRS sweat  | 
                      Tank size (gal) 4.5 | |
| 
             3D models 
                    
                  Tender text 
                      
                      CALEFFI, NA553379R.
Boiler trim kits (with RPZ backflow preventer)
 This kit includes:(1) Caleffi DISCAL® air separator;(1) Backflow preventer:1/2" NPT, sweat or press union;(1) AutoFill™;(1) Expansion tank check valve;(2) Brass nipples: 3";(1) NPT brass tee;(1) Expansion tank. 6 configurations combining 8 boiler installation components in one box. connection: 1 1/4" PRS, sweat. 
                     
                   | 
        |||