HVAC Hose | McMaster-Carr

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39 Products

About Duct Hose

With Female Fittings

With Female and 45° Flared Female Fittings

With Female Fitting and Female 45° Flared Ball Valve

Temperature Range: -20° to 180° F
Material: Kevlar with Buna-N Rubber Cover
Color: Black, Blue, Red, or Yellow

Use hose to charge and test your air conditioning units.

3-ft. Lengths
Thread Size	ID	OD	Max. Pressure	Choose a Color		Each
Brass Threaded UNF Female × Brass Threaded UNF Female
5/8"-18 × 5/8"-18	5/16"	5/8"	600 psi @ 72° F	Black	0000000	000000
Brass Threaded UNF Female × Brass 45° Flared UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	Blue, Red, Yellow	000000	00000
5-ft. Lengths
Brass Threaded UNF Female × Brass 45° Flared UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	Blue, Red, Yellow	000000	00000
6-ft. Lengths
Brass Threaded UNF Female × Brass Threaded UNF Female
5/8"-18 × 5/8"-18	5/16"	5/8"	600 psi @ 72° F	Black	0000000	00000
Brass Threaded UNF Female × Brass 45° Flared UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	Blue, Red, Yellow	000000	00000
Brass Threaded UNF Female × Brass 45° Flared Ball Valve UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	Blue, Red, Yellow	0000000	00000

Fittings
Brass Threaded 5/8"-18 UNF Male × Quick Disconnect 3/8 Female Socket	0000000	Each	000000
Brass Threaded 7/16"-20 UNF Male × Quick Disconnect 1/4 Female Socket	0000000	Each	00000

Air Conditioning Hose Sets

With Female and 45° Flared Female Fittings

With Female Fitting and Female 45° Flared Ball Valve

Temperature Range: -20° to 180° F
Material: Kevlar with Buna-N Rubber Cover
Color: Blue, Red, and Yellow

Each hose is a different color so you can differentiate your lines.

				3-ft. Lengths		5-ft. Lengths		6-ft. Lengths
Thread Size	ID	OD	Max. Pressure		Each		Each		Each
Brass Threaded UNF Female × Brass 45° Flared UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	0000000	000000	0000000	000000	0000000	000000
Brass Threaded UNF Female × Brass 45° Flared Ball Valve UNF Female
7/16"-20 × 7/16"-20	3/16"	1/2"	800 psi @ 72° F	000000	00	000000	00	0000000	000000

Fittings
Brass Threaded 7/16"-20 UNF Male × Quick Disconnect 1/4 Female Socket	0000000	Each	000000
Brass Threaded 5/8"-18 UNF Male × Quick Disconnect 3/8 Female Socket	0000000	Each	00000

Insulated Blo-N-Vent Duct Hose with Wear Strip for Air

Very Flexible
Compatible Clamps: Worm-Drive and Quick-Release Clamps
Color: Yellow; Wear Strip is Black
Temperature Range: -40° to 250° F

A layer of fiberglass insulation helps maintain the temperature inside the hose. Use for heating and cooling applications in outdoor environments. Hose has a wear strip that protects against damage caused by dragging. The liner meets UL 94 V-0 for flame retardance. The ends are cuffed for easy attachment to duct hose connectors.

								Spiral		Insulation
ID	OD	Bend Radius	Compresses To	Max. Vacuum	Max. Pressure	Material Thick.	Interior Surface Texture	Direction	Material	Material	R Value	Thick.		10 ft.	25 ft.
Neoprene-Coated Polyester
4"	5 7/16"	3"	35%	8 in. of Hg @ 72° F	8.2 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	0000000	0000000
5"	6 3/8"	3 1/2"	35%	7.2 in. of Hg @ 72° F	4.5 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
6"	8 7/16"	4"	20%	6.4 in. of Hg @ 72° F	4 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
8"	9 1/2"	5"	20%	6.1 in. of Hg @ 72° F	3.5 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
10"	11 9/16"	6"	20%	3.1 in. of Hg @ 72° F	2.8 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
12"	13 1/2"	7 1/2"	20%	1.8 in. of Hg @ 72° F	2.3 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
14"	16 9/16"	8 1/2"	20%	1.2 in. of Hg @ 72° F	2 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
16"	17 1/2"	10"	20%	0.7 in. of Hg @ 72° F	1.7 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
18"	19 1/2"	11"	20%	0.5 in. of Hg @ 72° F	1.6 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	000000	00000000
20"	21 9/16"	12"	20%	0.4 in. of Hg @ 72° F	1.4 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	00000000	00000000
24"	26 9/16"	14"	20%	Not Rated	0.9 psi @ 72° F	0.008"	Ribbed	Right Hand	Metal	Fiberglass	4	1"	0000000	00000000	00000000

Insulated Duct Hose for Indoor Air

Silver Metalized Film Cover

Very Flexible
Compatible Clamps: Worm-Drive Clamps
Color: Silver
Temperature Range: -20° to 140° F

Insulated with a layer of fiberglass, this ultra-thin, lightweight hose keeps air at a constant temperature. Use scissors or a utility knife to cut the hose to length.

							Spiral		Insulation
ID	OD	Bend Radius	Compresses To	Maximum Airflow, fpm	Material Thick.	Interior Surface Texture	Direction	Material	Material	R Value	Thick.	Specifications Met	Lg., ft.		Each
Fiberglass Hose with Silver Metalized Film Cover
4"	5"	4"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	000000
6"	7"	6"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	00000
8"	9"	8"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	00000
10"	11"	10"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	000000
12"	13"	12"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	000000
14"	15"	14"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	000000
16"	17"	16"	20%	5,000	0.002"	Ribbed	Left Hand	Metal	Fiberglass	4.2	1"	NFPA 90A, NFPA 90B, UL 181 Class 1	25	00000000	000000

Insulated Bend-and-Stay Metal Duct Hose for Air

Very Flexible
Compatible Clamps: Worm-Drive Clamps
Color: Silver
Temperature Range: -100° to 435° F

Bend this hose into position in heating and cooling applications where it’s important to maintain the temperature of the air inside the hose. Unlike fabric duct hose, this lightweight aluminum hose holds its shape once it’s curved around corners. It’s insulated with a layer of fiberglass, so it keeps air flowing through at a consistent temperature even when it’s routed through hot or cold spaces. The metalized film cover seals out moisture, protecting the insulation underneath.

This hose is not meant to be continuously flexed. Lengths beyond 6 ft. may need support.

									Spiral		Insulation
ID	OD	Bend Radius	Compresses To	Max. Airflow, fpm	Max. Vacuum	Max. Pressure	Material Thick.	Interior Surface Texture	Direction	Material	Material	R Value	Thick.	Specifications Met	Lg., ft.		Each
Aluminum Hose with Metalized Film Cover
4"	7 1/16"	1 1/2"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
6"	9 1/16"	4 1/2"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
7"	10 1/16"	5 1/2"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
8"	11 1/16"	6"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
10"	13 1/16"	7 1/2"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
12"	15 1/16"	9 1/2"	25%	5,000	0.88 in. of Hg @ 72° F	0.4 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
14"	17 1/16"	11"	25%	5,000	0.58 in. of Hg @ 72° F	0.2 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
16"	19 1/16"	12 1/2"	25%	5,000	0.58 in. of Hg @ 72° F	0.2 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000
18"	21 1/16"	14"	25%	5,000	0.58 in. of Hg @ 72° F	0.2 psi @ 72° F	0.006"	Ribbed	Right Hand	Metal	Fiberglass	4.2	1 1/2"	NFPA 90A/90B, UL 181 Class 1	8	0000000	000000