HHT .021 Pilot Orifice - NG (SRV446-505)

Replacement natural gas (NG) .021 pilot orifice for Heat N Glo, Heatilator, Royal and Quadra-Fire gas fireplaces. Fits the following models:

Heat N Glo Gas Fireplaces:

• 36DV88
• 4000GDV
• 4000INC
• 4000INS
• 4000TV
• 4000WH
• 5000GDV (Robertshaw valve only)
• 5000TV
• 6000ARCH
• 6000BE
• 6000BE-IPI
• 6000CAMP
• 6000CF
• 6000DVT
• 6000DVTFL
• 6000FLS
• 6000GDV
• 6000GDVFL
• 6000GDVFL-NF
• 6000PLUS
• 6000SEB
• 6000SGDV
• 6000TRB
• 6000TRI
• 6000TRI-IPI
• 6000TRI-SP
• 6000TR-NF
• 6000TR-OAK
• 6000TR-OAK-IPI
• 6000TRS-AUB
• 6000TRXI
• 6000TRXI-IPI (Pre serial # 002952047)
• 6000TV
• 6000TVB
• 6000TVFL
• 6000TVFL-NF
• 6000TV-OAK
• 6000TV-OAK-IPI
• 6000XL
• 6000XLS
• 6000XLSB
• 6000XLS-NF
• 6000XLT
• 6000XLTB
• 6000XLT-NF
• 6100PLUS
• 6100PLUS-LP
• 7000TR-NF
• 7000TV-NF
• 7000XLS-NF
• 7000XLT-NF
• 8000CF-OAK-IPI (Pre serial # 002927628)
• 8000DVT
• 8000DVTFL
• 8000GDV
• 8000GDVFL
• 8000TR
• 8000TRC
• 8000TRD
• 8000TRD-IPI
• 8000TR-OAK (Pre serial # 0021116425)
• 8000TR-OAK-IPI (Pre serial # 002927628)
• 8000TV
• 8000TVC
• 8000TVD
• 8000TVD-IPI
• 8000TVFL
• 8000TV-OAK (Pre serial # 0021116948)
• 8000TV-OAK-IPI (Pre serial # 002927628)
• AT-GRAND
• AT-GRAND-B
• AT-GRAND-C
• AT-GRAND-D
• AT-INSERT
• AT-SUPREME
• AT-SUPREME-B
• AT-SUPREME-C
• AT-SUPREME-D
• AT-ZC
• AT-ZC-B - Robertshaw valve only
• BAY-38HV
• BAYFYRE-TRS
• BAY-GDV
• BAY-INSERT
• BAY-INSERT-NS
• BAY-STOVE
• BE-32 (Pre serial # 2107620)
• BE-36
• BE-36-C (Pre serial # 0021076020)
• BE-36-CIPI (Pre serial # 0021076020)
• BE-41
• BE-41B
• CFX-CRESCENT (After serial # 002182991)
• CFX-GRAND-B
• CFX-IN-B
• DVT-INSERT
• DVT-STOVE
• ESCAPE-36DV (Pre serial # 002868727)
• EVEREST (Pre serial # 5000)
• FB-GRAND
• FB-IN
• FB-ZC
• GAS36TV
• GATEWAY
• GRAND-50
• GRAND-XT
• GS-4000
• INFINITY
• LCOR-HVB-IPI
• LCOR-HV-IPI
• L-CORNERDV
• L-CORNERTV
• L-COR-TRC & L-COR-IPI
• L-COR-TR
• L-COR-TVFL
• OLYMPUS
• PIER-38HV
• PIER-DVT
• PIER-GDV
• PIER-HVB-IPI
• PIER-HV-IPI
• PIER-TRC
• PIER-TRC-IPI
• PIER-TR
• PIER-TV
• PIER-TVFL
• PIER-TVFL-IPI
• RCOR-HV-IPI
• R-CORNERDV
• R-CORNERTV
• R-COR-TRC
• R-COR-TRC-IPI
• R-COR-TR
• R-COR-TVFL
• RST-DVFS-B
• SL-32
• SL-32GDV
• SL-32S
• SL-36 (After early 1997)
• SL-36GDV
• SL-36-NF (After early 1997)
• SL-36S
• SL-36TV
• SL-42
• SL-42DVT
• SL-42TV
• SL-350DVT
• SL-350TRS
• SL-350TRS-C (Pre serial # 0021080044)
• SL-350TV
• SL-550TR
• SL-550TR-C
• SL-550TR-D (Pre serial # 0021076206)
• SL-550TR-IPI-C
• SL-550TR-IPI-D (Pre serial # 0021076055)
• SL-550TRS
• SL-550TRS-AUD
• SL-550TRS-B
• SL-550TRS-C
• SL-550TRS-IPI-D (Pre serial # 0021077066)
• SL-550TV
• SL-550TV-C
• SL-550TV-D (Pre serial # 0021076055)
• SL-550TV-IPI-C
• SL-550TV-IPI-D (Pre serial # 0021076055)
• SL-750TR
• SL-750TR-C
• SL-750TR-D (Pre serial # 0021076251)
• SL-750TRFL
• SL-750TR-IPI-C
• SL-750TR-IPI-D (Pre serial # 0021076885)
• SL-750TRS
• SL-750TRS-B
• SL-750TRS-C
• SL-750TRS-IPI-D (Pre serial # 0021077066)
• SL-750TV
• SL-750TV-C
• SL-750TV-D (Pre serial # 0021076242)
• SL-750TV-IPI-C
• SL-750TV-IPI-D (Pre serial # 0021073118)
• SL-950TR
• SL-950TR-C
• SL-950TR-D (Pre serial # 0021076046)
• SL-950TR-IPI-C
• SL-950TR-IPI-D -(Pre serial # 0021076046)
• SL-950TV-C
• SL-950TV-D (Pre serial # 0021076046)
• SL-950TV
• SL-950TV-IPI-C
• SL-950TV-IPI-D (Pre serial # 0021076046)
• SL-2000
• SL-3000
• SL-INSERT
• SL-INSERT-B
• SL-TVBLD
• SOULSTICE
• ST-38GTV
• ST-38HV
• ST-42FL
• ST-42GTV
• ST-42TVFL
• ST-42TVFL-IPI
• ST-DVT
• ST-GDV
• ST-HVB-IPI
• ST-HV-IPI
• ST-TRC
• ST-TRC-IPI
• ST-TR
• SUPREME-XT
• TOWNSEND I
• TOWNSEND II (Robertshaw valve only)
• TWILIGHT
• ZC-XT

Heatilator Gas Log Sets:

• FI36M
• FI36ML
• FI42M
• FI42ML

Heatilator Gas Fireplaces:

• ADI-ZC-FB
• ADI60
• GCBC60i
• GCBC60Li
• GDCH60
• GDCH60L
• GDFL60I
• GDFL60LI
• GBCL36 (Pre serial # GA1549727)
• GBCL36E (Pre serial # GA1549727)
• GBCR36 (Pre serial # GA1549727)
• GBFL36
• GBiS36
• GBIS36L
• GBiS36E
• GBST36
• GBST36L (Pre serial # GA1549727)
• GCBC36
• GCBC36L
• GCBC42
• GCBC42L
• GCBC60
• GCBC60L
• GCBC80
• GCBC80L
• GCBC80E
• GCBC80LE
• GCBC80i
• GCBC80Li
• GCDC36
• GCDC36L
• GCDC42
• GCDC42L
• GCDC42E
• GCDC42LE
• GCDC60
• GCDC60F
• GCDC60i
• GCDC60Li
• GCDC80
• GCDC80L
• GDCH36
• GDCH36L
• GDCH60I
• GDCH60LI
• GDCL36
• GDCL36L
• GDCL60
• GDCL60L (Pre serial # GA1549727)
• GDCR36
• GDCR36L
• GDCR60
• GDCR60L (Pre serial # GA1549727)
• GDFL36
• GDFL36L
• GDFL60
• GDFL60L
• GDST36
• GDST36L
• GDST60
• GDST60L (Pre serial # GA1548727)
• GDST60i
• GDST60Li (Pre serial # GA1548727)
• GDST60iV
• GDST60LiV
• GDST60V
• GDST60LV (Pre serial # GA1548727)
• CGC150
• CGC150L
• EZ
• EZL
• G112HA
• G112HAL
• G136
• G136L
• G200
• G200L
• G340
• G340L
• G360S
• G360SL
• G420
• G420L
• G520CL
• G520CLL
• G520CR
• G520CRL
• G760CH
• G760CHL
• G920FL
• G920FLL
• GBi25
• GBi25L
• GC100
• GC100L
• GC100A
• GC100AL
• GC112
• GC112L
• GC150
• GC150L
• GC200
• GC200L
• GC300FL
• GC300FLL
• GC300ST
• GC300STL
• GC340
• GC340L
• GC341
• GC341L
• GC341A
• GC341AL
• GC361
• GC361L
• GC400
• GC400L
• GC400SF
• GC400SFL
• GC420
• GC420L
• GC500CL
• GC500CLL
• GC500CR
• GC500CRL
• GC920
• GC920L
• GC1990
• GC1990L
• GC2000
• GC2000L
• GGBC36
• GGBC36L
• GGBC42
• GGBC42L
• GGBR36
• GGBR36L
• GGBR42
• GGBR42L
• GNBC30
• GNBC30L
• GNBC30E
• GNBC30LE
• GNBC33
• GNBC33L
• GNBC36
• GNBC36L
• GNBR30
• GNBR30L
• GNBR36
• GNBR36L
• GNDC30
• GNDC30L
• GNDC33
• GNDC33L
• GNDC36
• GNDC36L
• GNDH30
• GNDH30L
• GNDH33
• GNDH33L
• GNDH36
• GNDH36L
• GNDR30
• GNDR30L
• GNDR33
• GNDR33L
• GNDR36
• GNDR36L
• GNRC33
• GNRC33L
• GNRH33
• GNRH33L
• GNRH36
• GNRH36L
• NANOV
• NASIM
• SIM
• SIML
• SIM-M
• SIM-LM
• TITAN

Royal Gas Fireplaces:

• R-3500TRC
• R-3500TR
• R-3500TR-NL
• R-3500TRHC
• R-3500TRH-NL
• R-3500TV
• R-3500TV-NL
• R-3500TVC
• R-4500
• R-4500TR
• R-4500TR-NL
• R-4500TRC
• R-4500TRHC
• R-4500TRH-NL
• R-4500TV
• R-4500TV-NL
• R-5500RHT
• R-5500TR
• R-5500TRC
• R-6500TR
• R-6500TR-NL
• R-6500TRX
• R-6500TV
• R-6500TV-NL
• R-MAXIN
• R-MAXIN-F

Quadra-Fire Gas Fireplaces:

• DV400
• DV400L
• DV750
• QV32
• QV32-A
• QV32B (Pre serial # 0021080519)
• QV32B-A (Pre serial # 0021080519)
• QV36
• QV36-A
• QV36A-FB (Pre Feb. 2006)
• QV36B (Pre serial # 0021080519)
• QV36B-A (Pre serial # 0021076968)
• QV36D
• QV36D-A
• QV36DB
• QV36DB-A
• QVI25
• QVI-25FB
• QVI30
• QVI-30FB
• QVI35
• QV-PIER
• QV-PIER-HV-IPI
• QV-ST
• QV-ST-HV-IPI
• DV425
• DV425L

HHT part # SRV446-505
Replaces part # 446-505
OEM HHT part

May fit other models, please check your owner’s manual for part number compatibility.