Heating and Cooling

Keep your facility comfortable and code-compliant with heating and cooling supplies from Supply Tie. Shop HVAC air filters, registers and vent covers, evaporative cooler parts, heaters and thermostats, dehumidifiers, pipe insulation, and water heater parts. Brands include 3M Filtrete, American Air Filter, Dial Manufacturing, Honeywell, and more. Bulk filter orders are available — stock up for the season and save.

Thermostats: thermostats and heating controls.

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Selkirk 3 in. D 28 Ga. Aluminum Storm Collar

Selkirk 3 in. D 28 Ga. Aluminum Storm Collar

Regular price $3.19 USD

Regular price Sale price $3.19 USD
Unit price per
Selkirk 3 in. D Aluminum Stove Pipe Metalbestos Top

Selkirk 3 in. D Aluminum Stove Pipe Metalbestos Top

Regular price $17.79 USD

Regular price Sale price $17.79 USD
Unit price per
Selkirk 3 in. D Galvanized Steel Adjustable Roof Flashing

Selkirk 3 in. D Galvanized Steel Adjustable Roof Flashing

Regular price $11.72 USD

Regular price Sale price $11.72 USD
Unit price per
Selkirk 3 in. D Galvanized Steel Wall Thimble

Selkirk 3 in. D Galvanized Steel Wall Thimble

Regular price $20.41 USD

Regular price Sale price $20.41 USD
Unit price per
Selkirk 3 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Regular price $12.48 USD

Regular price Sale price $12.48 USD
Unit price per
Selkirk 3 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Regular price $15.84 USD

Regular price Sale price $15.84 USD
Unit price per
Selkirk 3 in. D X 24 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 24 in. L Aluminum Round Gas Vent Pipe

Regular price $19.84 USD

Regular price Sale price $19.84 USD
Unit price per
Selkirk 3 in. D X 24 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Selkirk 3 in. D X 24 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Regular price $21.11 USD

Regular price Sale price $21.11 USD
Unit price per
Selkirk 3 in. D X 3 in. D Adjustable 90 deg Aluminum Stove Pipe Elbow

Selkirk 3 in. D X 3 in. D Adjustable 90 deg Aluminum Stove Pipe Elbow

Regular price $32.51 USD

Regular price Sale price $32.51 USD
Unit price per
Selkirk 3 in. D X 36 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 36 in. L Aluminum Round Gas Vent Pipe

Regular price $24.19 USD

Regular price Sale price $24.19 USD
Unit price per
Selkirk 3 in. D X 36 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Selkirk 3 in. D X 36 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Regular price $25.63 USD

Regular price Sale price $25.63 USD
Unit price per
Selkirk 3 in. D X 42 in. L Aluminum/Galvanized Steel Gas Vent Connector

Selkirk 3 in. D X 42 in. L Aluminum/Galvanized Steel Gas Vent Connector

Regular price $39.77 USD

Regular price Sale price $39.77 USD
Unit price per
Selkirk 3 in. D X 48 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 48 in. L Aluminum Round Gas Vent Pipe

Regular price $31.40 USD

Regular price Sale price $31.40 USD
Unit price per
Selkirk 3 in. D X 60 in. L Aluminum Round Gas Vent Pipe

Selkirk 3 in. D X 60 in. L Aluminum Round Gas Vent Pipe

Regular price $37.91 USD

Regular price Sale price $37.91 USD
Unit price per
Selkirk 3 in. D X 60 in. L Aluminum/Galvanized Steel Gas Vent Connector

Selkirk 3 in. D X 60 in. L Aluminum/Galvanized Steel Gas Vent Connector

Regular price $47.20 USD

Regular price Sale price $47.20 USD
Unit price per
MSRP $49.99
Selkirk 3 in. D X 9.56 in. L Aluminum/Galvanized Steel Stove Pipe Elbow

Selkirk 3 in. D X 9.56 in. L Aluminum/Galvanized Steel Stove Pipe Elbow

Regular price $20.69 USD

Regular price Sale price $20.69 USD
Unit price per
Selkirk 4 in. Aluminum/Steel Wall Support/Band Assembly

Selkirk 4 in. Aluminum/Steel Wall Support/Band Assembly

Regular price $35.33 USD

Regular price Sale price $35.33 USD
Unit price per
Selkirk 4 in. D 28 Ga. Galvanized Steel Pipe Collar

Selkirk 4 in. D 28 Ga. Galvanized Steel Pipe Collar

Regular price $5.75 USD

Regular price Sale price $5.75 USD
Unit price per
Selkirk 4 in. D 28 Ga. Galvanized Steel Storm Collar

Selkirk 4 in. D 28 Ga. Galvanized Steel Storm Collar

Regular price $3.67 USD

Regular price Sale price $3.67 USD
Unit price per
Selkirk 4 in. D Aluminum Stove Pipe Metalbestos Top

Selkirk 4 in. D Aluminum Stove Pipe Metalbestos Top

Regular price $16.97 USD

Regular price Sale price $16.97 USD
Unit price per
Selkirk 4 in. D Aluminum/Galvanized Steel Adjustable Roof Flashing

Selkirk 4 in. D Aluminum/Galvanized Steel Adjustable Roof Flashing

Regular price $11.76 USD

Regular price Sale price $11.76 USD
Unit price per
Selkirk 4 in. D Galvanized Steel Wall Thimble

Selkirk 4 in. D Galvanized Steel Wall Thimble

Regular price $21.79 USD

Regular price Sale price $21.79 USD
Unit price per
Selkirk 4 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Regular price $14.68 USD

Regular price Sale price $14.68 USD
Unit price per
Selkirk 4 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 12 in. L Aluminum Round Gas Vent Pipe

Regular price $18.93 USD

Regular price Sale price $18.93 USD
Unit price per
Selkirk 4 in. D X 12 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Selkirk 4 in. D X 12 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Regular price $15.61 USD

Regular price Sale price $15.61 USD
Unit price per
Selkirk 4 in. D X 24 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 24 in. L Aluminum Round Gas Vent Pipe

Regular price $21.97 USD

Regular price Sale price $21.97 USD
Unit price per
Selkirk 4 in. D X 24 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Selkirk 4 in. D X 24 in. L Aluminum/Galvanized Steel Round Gas Vent Pipe

Regular price $23.52 USD

Regular price Sale price $23.52 USD
Unit price per
Selkirk 4 in. D X 36 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 36 in. L Aluminum Round Gas Vent Pipe

Regular price $30.05 USD

Regular price Sale price $30.05 USD
Unit price per
Selkirk 4 in. D X 4 in. D Adjustable 90 deg Aluminum Stove Pipe Elbow

Selkirk 4 in. D X 4 in. D Adjustable 90 deg Aluminum Stove Pipe Elbow

Regular price $38.99 USD

Regular price Sale price $38.99 USD
Unit price per
Selkirk 4 in. D X 42 in. L Aluminum/Galvanized Steel Gas Vent Connector

Selkirk 4 in. D X 42 in. L Aluminum/Galvanized Steel Gas Vent Connector

Regular price $49.55 USD

Regular price Sale price $49.55 USD
Unit price per
Selkirk 4 in. D X 48 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 48 in. L Aluminum Round Gas Vent Pipe

Regular price $38.45 USD

Regular price Sale price $38.45 USD
Unit price per
Selkirk 4 in. D X 60 in. L Aluminum Round Gas Vent Pipe

Selkirk 4 in. D X 60 in. L Aluminum Round Gas Vent Pipe

Regular price $45.89 USD

Regular price Sale price $45.89 USD
Unit price per
Selkirk 4 in. D X 60 in. L Aluminum/Galvanized Steel Gas Vent Connector

Selkirk 4 in. D X 60 in. L Aluminum/Galvanized Steel Gas Vent Connector

Regular price $55.88 USD

Regular price Sale price $55.88 USD
Unit price per
MSRP $59.99
Selkirk 4 in. D X 9.56 in. L Aluminum/Galvanized Steel Stove Pipe Elbow

Selkirk 4 in. D X 9.56 in. L Aluminum/Galvanized Steel Stove Pipe Elbow

Regular price $24.47 USD

Regular price Sale price $24.47 USD
Unit price per
Selkirk 5 in. D 28 Ga. Aluminum Pipe Collar

Selkirk 5 in. D 28 Ga. Aluminum Pipe Collar

Regular price $6.15 USD

Regular price Sale price $6.15 USD
Unit price per
Selkirk 5 in. D 28 Ga. Aluminum Storm Collar

Selkirk 5 in. D 28 Ga. Aluminum Storm Collar

Regular price $7.41 USD

Regular price Sale price $7.41 USD
Unit price per