Square-to-Round Plenum Adapter (STR)

Name: Shop Fontanesi & Kann Square-to-Round Plenum Adapter (STR) - Square-to-Round Plenum Adapter (STR)
Brand: Shop Fontanesi & Kann
SKU: 30762005188
Price: 24.0 USD
Availability: InStock

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$24.00

Quantity

Color

Black

Quantity

Description

Model: STR
Square-to-Round Plenym Adapter

Black Interior Standard
26 Ga., G-90 Galvanized
1/8” Tolerance Standard

Click here for submittal

Delivery & Returns

Shop Fontanesi & Kann

Product description loading

This is the product description text that will appear here.

Shop Fontanesi & Kann

Surface Mount Eggcrate Return Grille w/ Screwholes (50F)

$18.00

Shop Fontanesi & Kann

Flanged Collar Fitting with Damper (FLD-SOG)

$30.00

Shop Fontanesi & Kann

Damper for Round Diffuser (D100)

$22.00

Shop Fontanesi & Kann

Architectural Plaque Lay-In Diffuser (OMNI)

$58.00

Shop Fontanesi & Kann

Sight-Proof Eggcrate Return Grille (45F)

$110.00

Shop Fontanesi & Kann

Enclosure for VAV Box

$76.00

Harfington

Duct Reducer Increaser Adapter Galvanized Steel Air Ducting Connector 8" to 6"

$28.59

Shop Fontanesi & Kann

Digital Single Duct Terminal (DESV/DW)

$461.00

Harfington

6" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

$21.43

Harfington

6 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

(1)

$19.61

Harfington

6" to 8" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

(1)

$34.97

Harfington

3 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

$11.07

Finnmark Sauna

150mm/75mm Rectangular Ductwork 90° Square Bend

$118.00

Harfington

8 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

$17.54

$43.41 - 3"Ø, 2" Tall Collar, 6.5" CMF Width, 7 Sq. In/0.05 Sq. Feet NFA, 14/29 Sq. Foot IBC., USRCM-001, RBV-3-C2-CMF, Shipping Size: 7X6X7 in, 0.59 lb, Lead Time: 20 Business Days

32% off

VentDepot Inc

RounBackFlange, Round Attic Vent Design, USRCM-001-018

$43.41$63.84

Shop Fontanesi & Kann

Aluminum Spiral Duct Grill with Damper (US300FS)

$172.00

Harfington

8 Inch Duct Connector Flange Square to Round Interface Straight Pipe Flange

$19.26

Shop Fontanesi & Kann

Flex Duct (F216, R6)

$110.00

Shop Fontanesi & Kann

Lay-in Eggrate Return Grill (50F3)

$34.00

Shop Fontanesi & Kann

Steel Opposed Blade Damper (AG75)

$35.00

Shop Fontanesi & Kann

Equipment Rails (SER)

$191.00

Harfington

4" to 8" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$34.75

67% off

Midwest Supply

OMNI-10 | 24"x24"CeilingDiffuser,10"Neck | Titus HVAC

$114.92$345.00

Harfington

6 Inch Galvanized Steel Round Duct Collar Duct Connector Flange Pipe Collar

$31.44

Harfington

3 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange with Clamp for Heating Cooling Ventilation HVAC System

(1)

$8.65

Harfington

6" to 12" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$85.20

Plus Suppliers HVAC Supply

20x20x36 Non-insulated Plenum 26ga

$72.15

Harfington

4 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange with Clamp for Heating Cooling Ventilation HVAC System

$10.07

Harfington

4" Duct Connector Flange, Metal Straight Pipe Exhaust Flange Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

$9.82

Harfington

3 Inch Duct Connector Flange, 2 Pack Exhaust Hose Flange ABS Round Air Duct for Heating Cooling Ventilation System

$10.66

Shop Fontanesi & Kann

Steel, High Performance Lay-in Diffuser (TMS3)

$51.00

Harfington

6 Inch Duct Connector Flange, 2 Pack Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System

$19.41

Shop Fontanesi & Kann

Uninsulated Duct (UPC 050)

$52.00

Shop Fontanesi & Kann

Surface Mount Register & Damper (300RS)

$44.00

Shop Fontanesi & Kann

Round Steel Adjustable Plaque Diffuser (R-OMNI)

$132.00

Shop Fontanesi & Kann

Titus II Pneumatic Terminal Unit Controller

$385.00

Harfington

3" to 4" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$16.39

Shop Fontanesi & Kann

DDC Cooling Unit Package

$650.00

Harfington

4 Inch Duct Connector Flange, Metal Straight Pipe Flange Square to Round Interface Air Duct for Heating Cooling Ventilation HVAC System

$11.27

Harfington

4" Duct Connector Flange, Metal Straight Pipe Exhaust Inlet Outlet Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

$10.01

Harfington

6" Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Flange Duct Mounting Plate for Heating Cooling Ventilation HVAC System

$16.53

Harfington

8 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

$28.80

Plus Suppliers HVAC Supply

16x24x36 Non-Insulated Plenum 26ga

$73.00

Harfington

6" Duct Connector Flange, Metal Straight Pipe Exhaust Inlet Outlet Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

$18.63

Shop Fontanesi & Kann

Plaster Frame For Lay-in Diffuser (TRM)

$28.00

A diagram of Air-Trac Square to Round HVAC Adapters

HVAC Jack

Square to Round Adapters- Box of (5)

$115.00

Shop Fontanesi & Kann

Roof Portals (RP)

$86.00

Shop Fontanesi & Kann

Steel Adjustable High-Performance Lay-in Diffuser (TMSA3)

$96.00

Shop Fontanesi & Kann

Steel Louvered Face Diffuser (TDC3)

$76.00

Shop Fontanesi & Kann

Pneumatic Retrofit Kit (31095699)

$400.00

Harfington

6 Inch Duct Connector Flange Square to Round Interface Straight Pipe Flange

$15.41

Shop Fontanesi & Kann

Flanged Collar Fitting with Damper (FLD-SOG)

$30.00

Harfington

6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange for Heating Cooling Ventilation HVAC System

$23.55

Harfington

6 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

$12.67

Harfington

7" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

$20.57

Harfington

4" Duct Connector Flange Square to Round Interface Straight Pipe Flange, 4 Pcs

$22.68

Harfington

6" Duct Connector Flange, ABS Ducting Airflow Tube Vent Connector for HVAC Heating Cooling Air Ventilation Systems, Black

$16.75

Harfington

2 Pcs 4" to 5" Galvanized Steel Round Duct Reducer Adapter Connector,Silver Tone

$24.65

Shop Fontanesi & Kann

Surface Mount Return Grille (350RL)

$30.00

Harfington

6 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Flange Square to Round Interface Air Duct for Heating Cooling Ventilation HVAC System

$23.04

Shop Fontanesi & Kann

Adjustable, Gasket-Tipped Blade Plenum Slot Diffuser (TBDI-80)

$112.00

Shop Fontanesi & Kann

Steel Opposed Blade Damper FOR 300 & 50F Grilles (AG15)

$20.00

Shop Fontanesi & Kann

Roof Curb for Lightweight Fill, Tapered Insulation, or Single-ply Roofing Application (RC2A)

$140.00

Shop Fontanesi & Kann

Water Coil for 1-Row VAV

$122.00

Harfington

3" to 6" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$20.67

Harfington

10" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

$38.76

Harfington

4" to 10" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$49.45

Harfington

4 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

$12.75

Harfington

3" Duct Connector Flange, ABS Straight Pipe Exhaust Flange Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

$9.48

67% off

Midwest Supply

350RL22X22 | RETURN AIR GRILLE STEEL 22X22 | Titus HVAC

$124.49$373.00

Harfington

3 Inch Duct Connector Flange, Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System

$8.37

Harfington

Round Duct Reducer Increaser Connector, Galvanized Steel Adapter Pipe Fitting for Bathroom Kitchen Ventilation Systems

$19.73

Shop Fontanesi & Kann

Perforated Return Diffuser (PAR)

$46.00

Harfington

5" to 6" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

(1)

$20.88

Shop Fontanesi & Kann

Perforated Supply Diffuser, 24X24 Module (PAS3)

$75.00

Shop Fontanesi & Kann

Steel, Round Ceiling Diffuser (TMR)

$134.00

Shop Fontanesi & Kann

Curtain Fire Damper (D0110)

$47.00

Shop Fontanesi & Kann

Round Fire Damper (1290F)

$104.00

Shop Fontanesi & Kann

Digital Single Duct Terminal w/ Ecoshield Liner (DESV/ES)

$320.00

Harfington

4" Duct Connector Flange Straight Pipe Flange Round Ventilation Duct, 3 Pcs

$17.51

Harfington

3" to 8" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

$35.32

Max Warehouse

Imperial Steel Oval to Round Connector

$21.99

Harfington

4 Inch Duct Connector Flange, 2 Pack ABS Square Air Ventilation with Duct Backdraft Valve for Heating Cooling Ventilation System, Black

$16.74

Plus Suppliers HVAC Supply

16x20x36 Non-insulated Plenum 26ga

$55.43

SquarePeg

Metal Fab Vertical Appliance Adapter, 3 inch ID x 5.06 OD

$66.15

Fans4less

110x54 (4") - Plenum Round to Flat Vertical 90 Degree

£2.35

Square-to-Round Plenum Adapter (STR)

Delivery & Returns

Shop Fontanesi & Kann

You might also like

Surface Mount Eggcrate Return Grille w/ Screwholes (50F)

Flanged Collar Fitting with Damper (FLD-SOG)

Damper for Round Diffuser (D100)

Architectural Plaque Lay-In Diffuser (OMNI)

Sight-Proof Eggcrate Return Grille (45F)

Enclosure for VAV Box

Duct Reducer Increaser Adapter Galvanized Steel Air Ducting Connector 8" to 6"

Digital Single Duct Terminal (DESV/DW)

6" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

6 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

6" to 8" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

3 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

150mm/75mm Rectangular Ductwork 90° Square Bend

8 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

RounBackFlange, Round Attic Vent Design, USRCM-001-018

Aluminum Spiral Duct Grill with Damper (US300FS)

8 Inch Duct Connector Flange Square to Round Interface Straight Pipe Flange

Flex Duct (F216, R6)

Lay-in Eggrate Return Grill (50F3)

Steel Opposed Blade Damper (AG75)

Equipment Rails (SER)

4" to 8" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

OMNI-10 | 24"x24"CeilingDiffuser,10"Neck | Titus HVAC

6 Inch Galvanized Steel Round Duct Collar Duct Connector Flange Pipe Collar

3 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange with Clamp for Heating Cooling Ventilation HVAC System

6" to 12" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

20x20x36 Non-insulated Plenum 26ga

4 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange with Clamp for Heating Cooling Ventilation HVAC System

4" Duct Connector Flange, Metal Straight Pipe Exhaust Flange Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

3 Inch Duct Connector Flange, 2 Pack Exhaust Hose Flange ABS Round Air Duct for Heating Cooling Ventilation System

Steel, High Performance Lay-in Diffuser (TMS3)

6 Inch Duct Connector Flange, 2 Pack Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System

Uninsulated Duct (UPC 050)

Surface Mount Register & Damper (300RS)

Round Steel Adjustable Plaque Diffuser (R-OMNI)

Titus II Pneumatic Terminal Unit Controller

3" to 4" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

DDC Cooling Unit Package

4 Inch Duct Connector Flange, Metal Straight Pipe Flange Square to Round Interface Air Duct for Heating Cooling Ventilation HVAC System

4" Duct Connector Flange, Metal Straight Pipe Exhaust Inlet Outlet Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

6" Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Flange Duct Mounting Plate for Heating Cooling Ventilation HVAC System

8 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

16x24x36 Non-Insulated Plenum 26ga

6" Duct Connector Flange, Metal Straight Pipe Exhaust Inlet Outlet Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

Plaster Frame For Lay-in Diffuser (TRM)

Square to Round Adapters- Box of (5)

Roof Portals (RP)

Steel Adjustable High-Performance Lay-in Diffuser (TMSA3)

Steel Louvered Face Diffuser (TDC3)

Pneumatic Retrofit Kit (31095699)

6 Inch Duct Connector Flange Square to Round Interface Straight Pipe Flange

Flanged Collar Fitting with Damper (FLD-SOG)

6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange for Heating Cooling Ventilation HVAC System

6 Inch Duct Connector Flange, Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

7" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

4" Duct Connector Flange Square to Round Interface Straight Pipe Flange, 4 Pcs

6" Duct Connector Flange, ABS Ducting Airflow Tube Vent Connector for HVAC Heating Cooling Air Ventilation Systems, Black

2 Pcs 4" to 5" Galvanized Steel Round Duct Reducer Adapter Connector,Silver Tone

Surface Mount Return Grille (350RL)

6 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Flange Square to Round Interface Air Duct for Heating Cooling Ventilation HVAC System

Adjustable, Gasket-Tipped Blade Plenum Slot Diffuser (TBDI-80)

Steel Opposed Blade Damper FOR 300 & 50F Grilles (AG15)

Roof Curb for Lightweight Fill, Tapered Insulation, or Single-ply Roofing Application (RC2A)

Water Coil for 1-Row VAV

3" to 6" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

10" Duct Connector Flange, Dryer Vent Wall Plate Square to Round Straight Silver

4" to 10" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

4 Inch Duct Connector Flange, 2 Pack Metal Straight Pipe Exhaust Hose Flange for Heating Cooling Ventilation HVAC System

3" Duct Connector Flange, ABS Straight Pipe Exhaust Flange Duct Mounting Plate with Screws for Air Heating Cooling Ventilation HVAC System

350RL22X22 | RETURN AIR GRILLE STEEL 22X22 | Titus HVAC

3 Inch Duct Connector Flange, Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System

Round Duct Reducer Increaser Connector, Galvanized Steel Adapter Pipe Fitting for Bathroom Kitchen Ventilation Systems

Perforated Return Diffuser (PAR)

5" to 6" Galvanized Steel Round Duct Reducer Adapter Connector, Silver Tone

Perforated Supply Diffuser, 24X24 Module (PAS3)

Steel, Round Ceiling Diffuser (TMR)