| Model # | NPA | Spec Sheet | Owner's Guide | Install Manual | Parts List | CERT. | 
|---|
| N-042-LP | x |   |   |   |   |   | 
| N-042-NG | x |   |   |   |   |   | 
| N-063-LP | x |   |   |   |   |   | 
| N-063-NG | x |   |   |   |   |   | 
| N-084-LP | x |   |   |   |   |   | 
| N-084-NG | x |   |   |   |   |   | 
| N-132-LP | x |   |   |   |   |   | 
| N-132-NG | x |   |   |   |   |   | 
| N-063S-LP | x |   |   |   |   |   | 
| N-063S-NG | x |   |   |   |   |   | 
| N-069M-LP | x |   |   |   |   |   | 
| N-069M-NG | x |   |   |   |   |   | 
| N-084M-LP | x |   |   |   |   |   | 
| N-084M-NG | x |   |   |   |   |   | 
| N-132M-LP | x |   |   |   |   |   | 
| N-132M-NG | x |   |   |   |   |   | 
| N-0531S-LP | x |   |   |   |   |   | 
| N-0531S-NG | x |   |   |   |   |   | 
| N-0631S-LP | x |   |   |   |   |   | 
| N-0631S-NG | x |   |   |   |   |   | 
| N-0751M-LP | x |   |   |   |   |   | 
| N-0751M-NG | x |   |   |   |   |   | 
| N-0931M-LP | x |   |   |   |   |   | 
| N-0931M-NG | x |   |   |   |   |   | 
| NR50-OD-LP |   |   |   |   |   |   | 
| NR50-OD-NG |   |   |   |   |   |   | 
| NR66-OD-LP | x |   |   |   |   |   | 
| NR66-OD-NG | x |   |   |   |   |   | 
| NR66-SV-LP | x |   |   |   |   |   | 
| NR66-SV-NG | x |   |   |   |   |   | 
| NR71-OD-LP | x |   |   |   |   |   | 
| NR71-OD-NG | x |   |   |   |   |   | 
| NR71-SV-LP | x |   |   |   |   |   | 
| NR71-SV-NG | x |   |   |   |   |   | 
| NR98-OD-LP | x |   |   |   |   |   | 
| NR98-OD-NG | x |   |   |   |   |   | 
| NR98-SV-LP | x |   |   |   |   |   | 
| NR98-SV-NG | x |   |   |   |   |   | 
| CB180-DV-LP | x |   |   |   |   | x | 
| CB180-DV-NG | x |   |   |   |   | x | 
| CB199-DV-LP | x |   |   |   |   | x | 
| CB199-DV-NG | x |   |   |   |   | x | 
| N-063S-1-LP | x |   |   |   |   |   | 
| N-063S-1-NG | x |   |   |   |   |   | 
| N-069M-1-LP | x |   |   |   |   |   | 
| N-069M-1-NG | x |   |   |   |   |   | 
| N-0841MC-LP | x |   |   |   |   |   | 
| N-0841MC-NG | x |   |   |   |   |   | 
| N-0842MC-LP | x |   |   |   |   |   | 
| N-0842MC-NG | x |   |   |   |   |   | 
| NC199-OD-LP | x |   |   |   |   |   | 
| NC199-OD-NG | x |   |   |   |   |   | 
| NH150-DV-LP | x |   |   |   |   |   | 
| NH150-DV-NG | x |   |   |   |   |   | 
| NH199-DV-LP | x |   |   |   |   |   | 
| NH199-DV-NG | x |   |   |   |   |   | 
| NR111-DV-LP | x |   |   |   |   |   | 
| NR111-DV-NG | x |   |   |   |   |   | 
| NR111-OD-LP | x |   |   |   |   |   | 
| NR111-OD-NG | x |   |   |   |   |   | 
| NR111-SV-LP | x |   |   |   |   |   | 
| NR111-SV-NG | x |   |   |   |   |   | 
| NR501-OD-LP |   |   |   |   |   |   | 
| NR501-OD-NG |   |   |   |   |   |   | 
| NR662-OD-LP |   |   |   |   |   |   | 
| NR662-OD-NG |   |   |   |   |   |   | 
| NR83-DVC-LP | x |   |   |   |   |   | 
| NR83-DVC-NG | x |   |   |   |   |   | 
| NR98-DVC-LP | x |   |   |   |   |   | 
| NR98-DVC-NG | x |   |   |   |   |   | 
| NR981-OD-LP |   |   |   |   |   |   | 
| NR981-OD-NG |   |   |   |   |   |   | 
| NR981-SV-LP | x |   |   |   |   |   | 
| NR981-SV-NG | x |   |   |   |   |   | 
| NRC83-DV-LP |   |   |   |   |   |   | 
| NRC83-DV-NG |   |   |   |   |   |   | 
| NRC83-OD-LP |   |   |   |   |   |   | 
| NRC83-OD-NG |   |   |   |   |   |   | 
| NRC98-DV-LP |   |   |   |   |   |   | 
| NRC98-DV-NG |   |   |   |   |   |   | 
| NRC98-OD-LP |   |   |   |   |   |   | 
| NRC98-OD-NG |   |   |   |   |   |   | 
| N-063S-OD-LP | x |   |   |   |   |   | 
| N-063S-OD-NG | x |   |   |   |   |   | 
| N-069M-DV-LP | x |   |   |   |   |   | 
| N-069M-DV-NG | x |   |   |   |   |   | 
| N-069M-OD-LP | x |   |   |   |   |   | 
| N-069M-OD-NG | x |   |   |   |   |   | 
| N-084M-DV-LP | x |   |   |   |   |   | 
| N-084M-DV-NG | x |   |   |   |   |   | 
| NC199-DVC-LP | x |   |   |   |   |   | 
| NC199-DVC-NG | x |   |   |   |   |   | 
| NC1991-OD-LP |   |   |   |   |   |   | 
| NC1991-OD-NG |   |   |   |   |   |   | 
| NCC199-DV-LP | x |   |   |   |   |   | 
| NCC199-DV-NG | x |   |   |   |   |   | 
| NCC199-SV-LP | x |   |   |   |   |   | 
| NCC199-SV-NG | x |   |   |   |   |   | 
| NR981-DVC-LP | x |   |   |   |   |   | 
| NR981-DVC-NG | x |   |   |   |   |   | 
| NRC111-DV-LP | x |   |   |   |   |   | 
| NRC111-DV-NG | x |   |   |   |   |   | 
| NRC111-SV-LP | x |   |   |   |   |   | 
| NRC111-SV-NG | x |   |   |   |   |   | 
| NRC661-DV-LP |   |   |   |   |   |   | 
| NRC661-DV-NG |   |   |   |   |   |   | 
| NRC661-OD-LP |   |   |   |   |   |   | 
| NRC661-OD-NG |   |   |   |   |   |   | 
| NRC711-DV-LP |   |   |   |   |   |   | 
| NRC711-DV-NG |   |   |   |   |   |   | 
| NRC711-OD-LP |   |   |   |   |   |   | 
| NRC711-OD-NG |   |   |   |   |   |   | 
| N-0531S-OD-LP | x |   |   |   |   |   | 
| N-0531S-OD-NG | x |   |   |   |   |   | 
| N-0631S-OD-LP | x |   |   |   |   |   | 
| N-0631S-OD-NG | x |   |   |   |   |   | 
| N-063S-CAN-LP | x |   |   |   |   |   | 
| N-063S-CAN-NG | x |   |   |   |   |   | 
| N-069M-CAN-LP | x |   |   |   |   |   | 
| N-069M-CAN-NG | x |   |   |   |   |   | 
| N-0751M-DV-LP | x |   |   |   |   |   | 
| N-0751M-DV-NG | x |   |   |   |   |   | 
| N-0751M-OD-LP | x |   |   |   |   |   | 
| N-0751M-OD-NG | x |   |   |   |   |   | 
| N-084M-CAN-LP | x |   |   |   |   |   | 
| N-084M-CAN-NG | x |   |   |   |   |   | 
| N-0931M-DV-LP | x |   |   |   |   |   | 
| N-0931M-DV-NG | x |   |   |   |   |   | 
| N-0931M-OD-LP | x |   |   |   |   |   | 
| N-0931M-OD-NG | x |   |   |   |   |   | 
| N-132M-CAN-LP | x |   |   |   |   |   | 
| N-132M-CAN-NG | x |   |   |   |   |   | 
| NC1991-DVC-LP |   |   |   |   |   |   | 
| NC1991-DVC-NG |   |   |   |   |   |   | 
| NCC1991-DV-LP |   |   |   |   |   |   | 
| NCC1991-DV-NG |   |   |   |   |   |   | 
| NCC1991-OD-LP |   |   |   |   |   |   | 
| NCC1991-OD-NG |   |   |   |   |   |   | 
| NH-1501-DV-LP | x |   |   |   |   |   | 
| NH-1501-DV-NG | x |   |   |   |   |   | 
| NH-2001-DV-LP | x |   |   |   |   |   | 
| NH-2001-DV-NG | x |   |   |   |   |   | 
| NRC1111-DV-LP |   |   |   |   |   |   | 
| NRC1111-DV-NG |   |   |   |   |   |   | 
| NRC1111-OD-LP |   |   |   |   |   |   | 
| NRC1111-OD-NG |   |   |   |   |   |   | 
| NRC661A-DV-LP | x |   |   |   |   |   | 
| NRC661A-DV-NG | x |   |   |   |   |   | 
| NRC661A-OD-LP | x |   |   |   |   |   | 
| NRC661A-OD-NG | x |   |   |   |   |   | 
| NRCP982-DV-LP | x |   |   |   |   |   | 
| NRCP982-DV-NG | x |   |   |   |   |   | 
| N-0751M-DVC-LP | x |   |   |   |   |   | 
| N-0751M-DVC-NG | x |   |   |   |   |   | 
| N-0841MC-DV-LP | x |   |   |   |   |   | 
| N-0841MC-DV-NG | x |   |   |   |   |   | 
| N-0842MC-DV-LP | x |   |   |   |   |   | 
| N-0842MC-DV-NG | x |   |   |   |   |   | 
| N-084M-ASME-LP | x |   |   |   |   |   | 
| N-084M-ASME-NG | x |   |   |   |   |   | 
| N-132M-ASME-LP | x |   |   |   |   |   | 
| N-132M-ASME-NG | x |   |   |   |   |   | 
| NR98-DVC-CA-LP | x |   |   |   |   |   | 
| NR98-DVC-CA-NG | x |   |   |   |   |   | 
| NRCP1112-DV-LP | x |   |   |   |   |   | 
| NRCP1112-DV-NG | x |   |   |   |   |   | 
| N-0931M-ASME-LP | x |   |   |   |   |   | 
| N-0931M-ASME-NG | x |   |   |   |   |   | 
| N-1321M-ASME-LP | x |   |   |   |   |   | 
| N-1321M-ASME-NG | x |   |   |   |   |   | 
| NC199-DVC-CA-LP | x |   |   |   |   |   | 
| NC199-DVC-CA-NG | x |   |   |   |   |   | 
| N-069M-DV-CAN-LP | x |   |   |   |   |   | 
| N-069M-DV-CAN-NG | x |   |   |   |   |   | 
| N-084M-DV-CAN-LP | x |   |   |   |   |   | 
| N-084M-DV-CAN-NG | x |   |   |   |   |   | 
| NC250-DV-ASME-LP | x |   |   |   |   |   | 
| NC250-DV-ASME-NG | x |   |   |   |   |   | 
| NC250-SV-ASME-LP | x |   |   |   |   |   | 
| NC250-SV-ASME-NG | x |   |   |   |   |   | 
| NC380-SV-ASME-LP | x |   |   |   |   |   | 
| NC380-SV-ASME-NG | x |   |   |   |   |   | 
| EZTR50 (UEF 0.96) | x |   |   |   |   | x | 
| EZTR75 (UEF 0.96) | x |   |   |   |   | x | 
| N-0751M-DVC-CA-LP | x |   |   |   |   |   | 
| N-0751M-DVC-CA-NG | x |   |   |   |   |   | 
| N-084M-DV-ASME-LP | x |   |   |   |   |   | 
| N-084M-DV-ASME-NG | x |   |   |   |   |   | 
| NRCP98-DV-LP 2019 |   |   |   |   |   | x | 
| NRCP98-DV-NG 2019 |   |   |   |   |   | x | 
| N-0931M-DV-ASME-LP | x |   |   |   |   |   | 
| N-0931M-DV-ASME-NG | x |   |   |   |   |   | 
| NRCP111-DV-LP 2019 |   |   |   |   |   | x | 
| NRCP111-DV-NG 2019 |   |   |   |   |   | x | 
| NRC663-FSV-LP(EZTR40) | x |   |   |   |   |   | 
| NRC663-FSV-NG(EZTR40) | x |   |   |   |   |   | 
| GQ-2457WS US LP (NR83OD) |   |   |   |   |   | x | 
| GQ-2457WS US NG (NR83OD) |   |   |   |   |   | x | 
| GQ-2857WX US LP (NR98OD) | x |   |   |   |   | x | 
| GQ-2857WX US NG (NR98OD) | x |   |   |   |   | x | 
| GQ-2857WZ US LP (NC199OD) | x |   |   |   |   | x | 
| GQ-2857WZ US NG (NC199OD) | x |   |   |   |   | x | 
| GQ-2857WX-F US LP (NR98SV) | x |   |   |   |   | x | 
| GQ-2857WX-F US NG (NR98SV) | x |   |   |   |   | x | 
| GQ-C2857WS US LP (NRC98OD) | x |   |   |   |   | x | 
| GQ-C2857WS US NG (NRC98OD) | x |   |   |   |   | x | 
| GQ-C3257WX US LP (NRC111OD) | x |   |   |   |   | x | 
| GQ-C3257WX US NG (NRC111OD) | x |   |   |   |   | x | 
| GQ-C3257WZ US LP (NCC199OD) | x |   |   |   |   | x | 
| GQ-C3257WZ US NG (NCC199OD) | x |   |   |   |   | x | 
| GQ-C5032WZ US LP (NCC300OD) |   |   |   |   |   | x | 
| GQ-C5032WZ US NG (NCC300OD) |   |   |   |   |   | x | 
| GQ-2039WS ET US LP (NER66OD) | x |   |   |   |   |   | 
| GQ-2039WS ET US NG (NER66OD) | x |   |   |   |   |   | 
| GQ-C2859WX-FF US LP (EZ98DV) | x |   |   |   |   | x | 
| GQ-C2859WX-FF US NG (EZ98DV) | x |   |   |   |   | x | 
| GQ-C2860WX-FF US LP (EZ98DV) |   |   |   |   |   |   | 
| GQ-C2860WX-FF US NG (EZ98DV) |   |   |   |   |   |   | 
| GQ-2457WS-FFA US LP (NR83DVC) | x |   |   |   |   | x | 
| GQ-2457WS-FFA US NG (NR83DVC) | x |   |   |   |   | x | 
| GQ-2857WX-FFA US LP (NR98DVC) | x |   |   |   |   | x | 
| GQ-2857WX-FFA US NG (NR98DVC) | x |   |   |   |   | x | 
| GQ-C2857WS-FF US LP (NRC98DV) | x |   |   |   |   | x | 
| GQ-C2857WS-FF US NG (NRC98DV) | x |   |   |   |   | x | 
| GQ-C3259WX-FF US NG (EZ111DV) | x |   |   |   |   | x | 
| GQ-C3260WX-FF US LP (EZ111DV) |   |   |   |   |   |   | 
| GQ-C3260WX-FF US NG (EZ111DV) |   |   |   |   |   |   | 
| GQ-2857WZ-FFA US LP (NC199DVC) | x |   |   |   |   | x | 
| GQ-2857WZ-FFA US NG (NC199DVC) | x |   |   |   |   | x | 
| GQ-C3257WX-FF US LP (NRC111DV) | x |   |   |   |   | x | 
| GQ-C3257WX-FF US NG (NRC111DV) | x |   |   |   |   | x | 
| GQ-C3257WZ-FF US LP (NCC199DV) | x |   |   |   |   | x | 
| GQ-C3257WZ-FF US NG (NCC199DV) | x |   |   |   |   | x | 
| GQ-C3259WX-FF US LP (EZ111DV)  | x |   |   |   |   | x | 
| GQ-C5032WZ-FF US LP (NCC300DV) |   |   |   |   |   | x | 
| GQ-C5032WZ-FF US NG (NCC300DV) |   |   |   |   |   | x | 
| GQ-C2660WXQ-FF US LP (NRCR92DV) |   |   |   |   |   |   | 
| GQ-C2660WXQ-FF US NG (NRCR92DV) |   |   |   |   |   |   | 
| GQ-C3259WZ-FF US LP (NCC199CDV) | x |   |   |   |   | x | 
| GQ-C3259WZ-FF US NG (NCC199CDV) |   |   |   |   |   | x | 
| GQ-C3260WZ-FF US LP (NCC199CDV) |   |   |   |   |   |   | 
| GQ-C3260WZ-FF US NG (NCC199CDV) |   |   |   |   |   |   | 
| GHQ-C2801WX-FF US LP (NRCB180DV) | x |   |   |   |   | x | 
| GHQ-C2801WX-FF US NG (NRCB180DV) | x |   |   |   |   | x | 
| GHQ-C3201WX-FF US LP (NRCB199DV) | x |   |   |   |   | x | 
| GHQ-C3201WX-FF US NG (NRCB199DV) | x |   |   |   |   | x | 
| GQ-C3260WXQ-FF US LP (NRCR111DV) |   |   |   |   |   |   | 
| GQ-C3260WXQ-FF US NG (NRCR111DV) |   |   |   |   |   |   | 
| GQ-C2857WS-FF ET US LP (NERC98DV) | x |   |   |   |   |   | 
| GQ-C2857WS-FF ET US NG (NERC98DV) | x |   |   |   |   |   | 
| GQ-C3257WX-FF ET US LP (NERC11DV) | x |   |   |   |   |   | 
| GQ-C3257WX-FF ET US NG (NERC11DV) | x |   |   |   |   |   | 
| GQ-C2859WX-FF US LP (EZ98DV) [UEF 0.96] | x |   |   |   |   | x | 
| GQ-C2859WX-FF US NG (EZ98DV) [UEF 0.96] | x |   |   |   |   | x | 
| GQ-C2860WX-FF US LP (EZ98DV) [UEF 0.97] |   |   |   |   |   |   | 
| GQ-C2860WX-FF US NG (EZ98DV) [UEF 0.97] |   |   |   |   |   |   | 
| GQ-C3259WX-FF US LP (EZ111DV) [UEF 0.96] | x |   |   |   |   | x | 
| GQ-C3259WX-FF US NG (EZ111DV) [UEF 0.96] | x |   |   |   |   | x | 
| GQ-C3260WX-FF US LP (EZ111DV) [UEF 0.97] |   |   |   |   |   |   | 
| GQ-C3260WX-FF US NG (EZ111DV) [UEF 0.97] |   |   |   |   |   |   | 
| GQ-C3259WZ-FF US LP (NCC199CDV) [UEF 0.96] | x |   |   |   |   | x | 
| GQ-C3259WZ-FF US NG (NCC199CDV) [UEF 0.96] |   |   |   |   |   | x | 
| GQ-C3260WZ-FF US LP (NCC199CDV) [UEF 0.97] |   |   |   |   |   |   | 
| GQ-C3260WZ-FF US NG (NCC199CDV) [UEF 0.97] |   |   |   |   |   |   | 
| vc-6 | x | x | x |   | x | x | 
| NC-1S |   | x | x |   | x | x | 
| CR60-WK | x | x | x |   | x | x | 
| PVC-2CT | x | x | x |   | x | x | 
| PVC-3CT | x | x | x |   | x | x | 
| RPK-EXT | x | x | x |   | x | x | 
| SV-CK-3 |   | x | x |   | x | x | 
| IHK-NRCP | x | x | x |   | x | x | 
| VCK-NRCB |   | x | x |   | x | x | 
| VCK-NRCP | x | x | x |   | x | x | 
| VCK-NRCP-1 | x | x | x |   | x | x | 
| H2F (H2Flow) | x |   | x |   | x | x | 
| VK3-PVC-VAS  | x | x | x |   | x | x | 
| BMS1-SC-301-6M |   |   | x |   | x | x | 
| BMS1-SC-401-6M | x |   | x |   | x | x | 
| N-FlexKit2"-35 | x | x |   |   | x | x | 
| EZ Series Chimney | x |   | x | x | x | x | 
| RB-1 (Recess Box) | x |   | x |   | x | x | 
| RB-2 (Recess Box) | x |   | x |   | x | x | 
| RB-3 (Recess Box) | x |   | x |   | x | x | 
| RB-4 (Recess Box) | x |   | x |   | x | x | 
| RB-5 (Recess Box) | x |   | x |   | x | x | 
| RB-6 (Recess Box) | x |   | x |   | x | x | 
| PC-6S (Pipe Cover) | x |   | x |   | x | x | 
| PC-7S (Pipe Cover) | x |   | x |   | x | x | 
| PC-8S (Pipe Cover) | x |   | x |   | x | x | 
| PC-9S (Pipe Cover) | x |   | x |   | x | x | 
| NRCB Series Chimney | x |   | x | x | x | x | 
| PC-10S (Pipe Cover) | x |   | x |   | x | x | 
| RB-500 (Recess Box) | x |   | x |   | x | x | 
| RB-510 (Recess Box) | x |   | x |   | x | x | 
| RB-600 (Recess Box) | x |   | x |   | x | x | 
| RB-700 (Recess Box) | x |   | x |   | x | x | 
| RB-900 (Recess Box) | x |   | x |   | x | x | 
| IK-300-1 (1" Valves) | x |   | x |   | x | x | 
| RB-500F (Recess Box) | x |   | x |   | x | x | 
| RB-600F (Recess Box) | x |   | x |   | x | x | 
| RB-700F (Recess Box) | x |   | x |   | x | x | 
| RB-900F (Recess Box) | x |   | x |   | x | x | 
| MR2 (Commercial Rack) |   |   | x |   | x | x | 
| RB-700-1 (Recess Box) | x |   | x |   | x | x | 
| RB-900-1 (Recess Box) | x |   | x |   | x | x | 
| CVK-SNRK (Snorkel Kit) | x |   | x |   | x | x | 
| EZ2FVK-2 (35 Flex Kit) | x | x |   |   | x | x | 
| IK-200-1 (3/4" Valves) | x |   | x |   | x | x | 
| NAW-1 US (NWC-Adapter) | x |   |   |   |   | x | 
| PC-1S-5S (Pipe Covers) | x |   | x |   | x | x | 
| RC-CORD10-26 (RC Cord) | x |   | x |   | x | x | 
| CSV-BPK (Crossover Kit) | x | x | x |   | x | x | 
| Concentric Vent (CVT-S) | x | x | x |   | x | x | 
| Concentric Vent (CWF-F) | x | x | x |   | x | x | 
| SS-HB-1-2 (ScaleShield) | x |   | x |   | x | x | 
| RC-7650M (RC for Canada) | x |   | x |   | x | x | 
| Concentric Vent (CVK-H-F) | x | x | x |   | x | x | 
| Concentric Vent (CVK-V-F) | x | x | x |   | x | x | 
| MK-CB-1 (CB Manifold Kit) |   |   | x | x | x | x | 
| SS-HB-3 (Scale Shield Kit) |   | x | x | x | x | x | 
| Common Vent (GQ-59 Series)  |   | x | x |   | x | x | 
| Common Vent (GQ-60 Series)  | x | x | x |   | x | x | 
| Concentric Vent (CRCAI-1-F) | x | x | x |   | x | x | 
| EZ2FVK-1 (25 Flex Vent Kit) | x | x |   |   | x | x | 
| QC-1-2 (Quick Connect Cord) | x |   | x |   | x | x | 
| cCS-V (Crossover Valve Kit) | x | x | x |   | x | x | 
| CH210-30 (Commercial H2Flow) | x |   | x |   | x | x | 
| CH250-75 (Commercial H2Flow) | x |   | x |   | x | x | 
| EZ2FVP35-3 (35 Flex Vent 2") | x | x |   |   | x | x | 
| RC-7649M (Remote Controller) | x |   | x |   | x | x | 
| RC-7651M (Remote Controller) | x |   | x |   | x | x | 
| RC-9018M (Remote Controller) | x |   |   |   | x | x | 
| MK-NRCB-1 (NRCB Manifold Kit) |   |   | x | x | x | x | 
| CDVNRVK (Non-Return Valve Kit) |   | x | x |   | x | x | 
| Common Vent (GQ-59 Series PVC) |   | x | x |   | x | x | 
| NT20A (commercial neutralizer) |   |   | x |   | x | x | 
| VK3-H-PVC (PVC Concentric Vent) | x |   | x |   | x | x | 
| SCU-401-12M (12-Unit Controller) | x |   | x |   | x | x | 
| SCU-401-24M (24-Unit Controller) | x |   | x |   | x | x | 
| SS-HBC-1-2 (ScaleShield Cartridge) | x |   | x |   | x | x | 
| Wireless On-Demand Button Kit (WLB) |   | x | x |   | x | x | 
| SC-201-6M (6-Unit System Controller) | x |   | x |   | x | x | 
| SC-301-6M (6-unit System Controller) | x |   | x |   | x | x | 
| SC-401-6M (6-Unit System Controller) | x |   | x |   | x | x | 
| VK4-PVC2SUS (PVC2Stainless Adaptor)  | x | x | x |   | x | x | 
| SC-201-12M (12-Unit System Controller) | x |   | x |   | x | x | 
| SCU-301-12M (12-unit System Controller) | x |   | x |   | x | x | 
| SCU-301-24M (24-unit System Controller) | x |   | x |   | x | x | 
| PVC-UCVK (Universal Concentric Vent Kit) | x | x | x |   | x | x | 
| PVC-2LPT (Low Profile Vent Termination Kit) | x | x | x |   | x | x | 
| PVC-3LPT (Low Profile Vent Termination Kit) | x | x | x |   | x | x | 
| (CR60-CA) Gas Pressure Testing Compliant for CA |   |   | x |   | x | x | 
| (CWHS) NCC199 Commercial Water Heater Rack System |   |   | x | x | x | x | 
| SC-201-6M-EXT (6-Unit External System Controller) | x |   | x |   | x | x | 
| SC-301-6M-EXT (6-unit external system controller) | x |   | x |   | x | x | 
| SC-401-6M-EXT (6-unit external system controller) | x |   | x |   | x | x | 
| (CR60) NCC199CDV Commercial Water Heater Rack System |   |   | x |   | x | x |