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Burner (16)
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Ignition Control (37)
Ignitor (12)
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Baso Gas Products

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Product Image of Pilot Burner with Thermocouple (0.032")
$65.93 each
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Product Image of 120Vac Silicon Carbide Hot Surface Ignitor
$58.75 each
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Product Image of 120Vac Silicon Carbide Hot Surface Ignitor
$52.18 each
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Product Image of 1/8" x 1/8" FPT Single Solenoid Gas Valve, 70,000 BTU (25V)
$90.64 each
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Product Image of 1/4" x 1/4" Compression Single Solenoid Gas Valve, 42,000 BTU (25V)
$89.22 each
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Product Image of 1/4" x 1/4" FPT Single Solenoid Gas Valve, 100,000 BTU with Pressure Tap (25V)
$85.51 each
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Product Image of 1/2" NPT Automatic Gas Valve 240,000 BTU (120 VAC)
$174.61 each
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Product Image of 1/8" NPT Automatic Gas Valve 70,000 BTU (25 VAC)
$152.77 each
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Product Image of 3/4" NPT Automatic Gas Valve 325,000 BTU (208/240 VAC)
$324.43 each
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Product Image of 3/8" Basotrol Automatic Gas Shutoff Valve 55,000 BTU (120V)
$144.98 each
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Product Image of 3/4" Basotrol Automatic Gas Shutoff Valve, 325,000 BTU (120V)
$218.25 each
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Product Image of 3/4" NPT Automatic Gas Valve 430,000 BTU (25 VAC)
$228.70 each
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Product Image of 3/8" Automatic Shutoff Pilot Gas Valve with Flow Interrupter (140,000 BTU)
$281.92 each
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Product Image of 1/2" Combination Auto. Gas & Top Adjust Pilot Flow Valve (120V)
$329.65 each
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Product Image of 3/8" FNPT Poppet-Style Convertible Regulator
$37.23 each
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Product Image of 24V Intermittent Pilot Ignition Control w/ Rollout Switch (85 Sec. Trial)
$176.11 each
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Product Image of 1/2" Non-Regulated Combination Gas Valve w/ 30" Leads (208/240V)
$484.03 each
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Product Image of 1/4" x 1/4" FPT Single Solenoid Gas Valve, 100,000 BTU (12 VDC)
$83.62 each
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Product Image of Pilot Burner w/ Horizontal Low Profile & Free Frame T Form
$62.85 each
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Product Image of Pilot Burner w/ .018 Orifice, Non-uniform 'C' Section, Clam Shell & Electrodes Gap w/ Leads
$161.50 each
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Product Image of 36" Resistive Wire Harness
36" Resistive Wire Harness
SKU: WHA40A-604H
Baso Gas Products
SKU: WHA40A-604H
$51.76 each
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Product Image of Pilot Assembly for Flame Sensor
$125.25 each
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Product Image of 1/4" Compression Coupling Extended Inlet Fitting w/ .012" Orifice (NG/LP)
$11.57 each
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Product Image of 3/16" C.C. Manually Operated Pilot Adjust Elbow
$15.24 each
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Product Image of 1/4" CC .010 Orifice
1/4" CC .010 Orifice
SKU: Y90HA-4710
Baso Gas Products
SKU: Y90HA-4710
$11.25 each
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Product Image of 3/16" C.C. Manually Operated Pilot Adjust Adapter
$23.80 each
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Product Image of 3/8" x 3/8" FPT Single Solenoid Gas Valve, 115,000 BTU (240V)
$92.20 each
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Product Image of Replacement Flame Sensor w/ 90° Terminal Connector
$53.35 each
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Product Image of 1/4" Compression Coupling Inlet Fitting w/ .021" Orifice (NG)
$22.09 each
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Product Image of Universal Ignitor Replacement Kit
$78.57 each
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Product Image of 120Vac Silicon Carbide Hot Surface Ignitor
$41.38 each
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Product Image of 120Vac Silicon Carbide Hot Surface Ignitor
$48.37 each
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Product Image of 120 Vac Universal Silicon Nitride Hot Surface Ignitor Replacement Kit
$94.24 each
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Product Image of Pilot Burner Natural Gas Inlet Fitting 0.022"
$132.00 each
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Product Image of Pilot Burner w/ D Shape & Similar Bracket, Free Flame Y Form & Electrode Gap w/ Leads
$36.13 each
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Product Image of Pilot Burner w/ .012 Dual Orifice, D Shape and Similar & Horn Type 90° Tip
$49.85 each
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Product Image of 1/2" Combination Auto. Gas & Bottom Adjust Pilot Flow Valve (208/240V)
$487.20 each
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Product Image of 24V Intermittent Direct Spark Ignition Module (0pp, 4tfi)
$212.17 each
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Product Image of 24V Intermittent Direct Spark Ignition Module (3try, 0pp, 8tfi)
$293.39 each
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Product Image of 24V Intermittent Pilot Ignition Module (1try, 50 sec no retry)
$231.54 each
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Product Image of 1/2" FNPT Poppet-Style Convertible Regulator w/ 3/8" Reducer Bushings
$30.59 each
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Product Image of 1/2" FNPT Poppet-Style Convertible Regulator
$28.83 each
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Product Image of 3/4" x 3/4" FPT Single Solenoid Gas Valve, 430,000 BTU (12 VDC)
$198.58 each
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Product Image of 3/4" x 3/4" FPT Single Solenoid Gas Valve, 290,000 BTU (240V)
$186.57 each
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Product Image of 1" x 1"  FPT Single Solenoid Gas Valve, 500,000 BTU (25V)
$205.28 each
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Product Image of 3/4" x 3/4" FPT Single Solenoid Gas Valve, 290,000 BTU (120V)
$197.76 each
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Product Image of Rajah Adapter (Bag of 10)
Rajah Adapter (Bag of 10)
SKU: RAA1600A-601H
Baso Gas Products
SKU: RAA1600A-601H
$7.35 each
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Product Image of 230VAC Continuous Spark Block Igniter Standard Enclosure Assembly
230VAC Continuous Spark Block Igniter Standard Enclosure Assembly
SKU: CS422L-1C
Baso Gas Products
SKU: CS422L-1C
$83.45 each
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More About Baso Gas Products

BASO Gas Products LLC is a gas controls manufacturer founded in 1914 in Watertown, Wisconsin. It produces thermocouples, thermopiles, pilot assemblies, gas valves, ignitors, and furnace boards for residential and commercial gas appliances. BASO products are RoHS compliant, ISO 9001-2015 certified, and meet ANSI, CSA, and UL requirements. BASO distributes through wholesale HVAC channels including SupplyHouse.

BASO Gas Products Product Lines

  • Thermocouples: Millivolt safety devices for standing pilot gas valves.
  • Thermopiles: Higher-millivoltage generators powering full millivolt gas valve circuits without external power.
  • Pilot Burner Assemblies: Complete pilot replacement assemblies for gas appliances.
  • Gas Valves: Millivolt and electric gas valves for heating applications.
  • Ignitors and Spark Electrodes: Hot surface and spark ignitors for electronic ignition systems.
  • Ignition Controls and Furnace Boards: Electronic ignition sequencing and flame supervision controls.

Why Contractors Specify BASO Gas Products

BASO provides a broad cross-reference range of thermocouples, thermopiles, and pilot assemblies covering many residential and commercial gas appliance manufacturers. BASO millivolt gas valves and thermopiles serve standing pilot systems that operate without external electrical power.

How to Choose a BASO Product

Match thermocouple or thermopile millivolt output to the gas valve specification. For thermocouples, match thread size and sheath length to the existing pilot assembly. For thermopiles, verify the millivoltage required to power the gas valve and controls.

Frequently Asked Questions

  • What is the difference between a thermocouple and a thermopile? A thermocouple only holds the safety valve seat open. A thermopile powers the entire millivolt circuit.
  • How do I diagnose thermocouple failure? A common sign is a pilot that will not stay lit after you release the pilot button.
  • Does BASO offer universal-fit products? BASO offers universal types. Verify thread size and length against the appliance assembly.
  • What is a millivolt system? A millivolt system is powered entirely by thermopile output. It operates without external electrical power.
  • Are BASO ignitors cross-compatible with OEM ignitors? BASO ignitors are cross-referenced to OEM applications. Verify resistance and configuration before ordering.