Which Industrial Ventilation Hose Is Right for Your Operation?

Thermoplastic rubber air duct cleaning hose for residential and commercial duct cleaning contractors

The flexible suction hose that runs between your duct cleaning machine and your customer's HVAC ductwork. Built for the daily realities of duct cleaning work — pulling dust, debris, and air from residential and commercial duct systems back to your collection rig. Thermoplastic rubber construction with a smooth interior for efficient airflow, plus excellent compressibility for navigating tight basements, attics, and around HVAC equipment. Rated -60°F to 275°F. The everyday workhorse for residential and commercial duct cleaning contractors.

Best for:

• Commercial and residential air duct cleaning contractors
• HVAC service technicians performing duct system maintenance
• Furnace and ductwork cleaning (also see our Heavy-Duty / Furnace Duct Cleaning Hose below for abrasive environments)
• Contractors needing a flexible TPR duct hose that handles wide temperature ranges on every job

Why this hose:

• Thermoplastic rubber (TPR) construction — durable, compressible, broad temperature range
• Spring steel wire helix holds shape under vacuum
• 0.020" wall — light enough for long runs, durable for daily contractor use
• Rated -60°F to 275°F (intermittent to 300°F) — handles cold-weather basement runs and hot equipment ductwork
• Smooth interior for efficient airflow and minimal friction loss

Sizes 2"–12" ID. 0.020" wall thickness. Standard 25 ft stock lengths.

Equipment compatibility: Compatible with commercial duct cleaning rigs and HVAC service equipment including Hypervac, Goodway, RotoBrush, Air-Care, Pro-Vac, Nikro, Vortex (Tornado), and most major commercial duct cleaning systems. Verify intake diameter before ordering.

Heavy-duty thermoplastic rubber duct hose for furnace duct cleaning and abrasive industrial duct work

The heavy-duty flexible suction hose built for furnace duct cleaning — pulling carbon residue, soot, and combustion byproducts from a furnace's plenum, supply ducts, and return runs back to your collection rig. Same thermoplastic rubber construction as our Standard Air Duct Cleaning Hose above but with a thicker 0.030" wall (vs T-7's 0.020") and an external polypropylene wearstrip that holds up to drag across mechanical room floors and around heating equipment. The pick for HVAC service techs running pre-season furnace cleanings, plus duct cleaning contractors who wear through standard-wall hose too quickly on furnace work or in conduit, paper trim, and off-road environments.

Best for:

• Furnace duct cleaning contractors
• Industrial conduit and paper trim applications
• Landfill venting and off-road duct work
• HVAC contractors who wear through standard T-7 too quickly
• Jobs requiring drag-resistant ducting on rough surfaces
• Abrasive environment duct cleaning operations

Why this hose:

• Heavier 0.030" wall — 50% thicker than standard T-7 for longer wear life
• External polypropylene wearstrip protects the hose body from abrasion when dragged
• Same broad temperature range as T-7 (-60°F to 275°F)
• Smooth interior maintains airflow efficiency despite heavier construction
• Yellow and black coloring for high jobsite visibility

Sizes 2"–12" ID. 0.030" wall thickness. Standard 25 ft stock lengths.

Equipment compatibility: Compatible with the same commercial duct cleaning rigs as our standard pick (Hypervac, Goodway, RotoBrush, Air-Care, Pro-Vac, Nikro, Vortex/Tornado), plus heavier-duty industrial cleaning operations, industrial conduit installations, and off-road duct systems. Verify intake diameter before ordering.

Para-aramid welding fume extraction hose for welding shops, fabrication, and smoke ejection

The purpose-built welding fume extraction hose. Single-ply para-aramid fabric construction — the same material family as Kevlar — with a coated steel wire helix and external metal wearstrip that handles the abrasion welding shops actually see: hose dragged across concrete floors, around equipment, between weld stations. Flex-Lok 300 specializes in four applications: welding fume extraction, smoke ejection, garage exhaust, and flame-retardant ducting. That tight focus is the point. This isn't a multi-purpose duct hose that "also works for welding" — it's built for the welding shop specifically, and the construction shows it.

Best for:

• Welding shops capturing hot fume at the source (MIG, TIG, stick, plasma)
• Fabrication shops with fume hood systems
• Smoke ejection in fire service apparatus
• Garage exhaust extraction for diesel and gas-powered equipment
• Industrial environments requiring flame-retardant ductwork
• Operations replacing cheap PVC or coated fabric hose that melts or burns under fume temperatures

Why this hose:

• Para-aramid fabric construction — same material family as Kevlar, built for heat and flame resistance
• External metal wearstrip — outstanding external abrasion resistance for hose dragged across shop floors
• Rated -65°F to 300°F — handles continuous welding fume temperatures
• Purpose-built for welding fume, garage exhaust, smoke ejection, and flame-retardant ducting — not a multi-use compromise
• Excellent compressibility, puncture resistance, and tensile strength
• Mechanically crimped continuous-process construction

Sizes 4"–18" ID (custom to 20" available). Standard 25 ft stock lengths.

Equipment compatibility: Compatible with welding fume extraction systems including Lincoln Electric, Miller Electric, Donaldson Torit fume collectors, Plymovent source capture arms, RoboVent, and Eurovac. Also fits fire service smoke ejector apparatus (Super Vac, Tempest, Ramfan) and garage exhaust hose reels. Verify intake diameter before ordering.

Silicone-coated fiberglass heat hose for foundries, brick kilns, drying systems, and high-temperature industrial heat applications

The high-temperature workhorse. Silicone-coated fiberglass construction with a steel wire helix, rated -65°F to 600°F — handles continuous heat applications that melt plastic, soften coated fabric, or crack PVC duct. Heat-Flex GS thrives across foundries, brick kilns, drying systems, injection molding, paper mills, glass drying, and defroster/heater applications. Also serves garage exhaust, brake ducting, and vehicle exhaust extraction (those buyers will find their dedicated tier on our Automotive Buying Guide). Built for continuous high-heat industrial environments where lower-temperature hoses fail under sustained load.

Best for:

• Foundry sand transfer and casting exhaust
• Brick kiln and ceramic firing operations
• Industrial drying systems (glass, paper, food, textile)
• Injection molding heat exhaust
• Paper mill drying operations
• Plastics industry heat handling
• Defroster and industrial heater ducting
• Garage exhaust extraction

Why this hose:

• Silicone-coated fiberglass construction — rated to 600°F continuous, higher than any TPR or polyurethane in our line
• Steel wire helix — holds shape under vacuum and sustained high temperature
• The most versatile heat hose in our lineup — covers foundries, brick kilns, drying systems, injection molding, paper mills, and high-temp industrial heat
• Resistant to oil, solvents, and most industrial chemicals
• Continuous-temperature rated, not just intermittent peaks
• Mechanically reinforced construction holds up under prolonged thermal cycling

Sizes 1.25"–4" ID (additional sizes available on request). Silicone-coated fiberglass construction. Standard 12 ft stock lengths.

Equipment compatibility: Compatible with foundry sand transfer systems, brick kiln and ceramic exhaust, industrial drying equipment (Donaldson Torit, Camfil), paper mill exhaust runs, injection molding heat venting, and defroster/heater installations. Also serves garage exhaust hose reels (Plymovent, Cradle), vehicle exhaust extraction setups, and dyno cells. Verify intake diameter and temperature requirements before ordering.

Thermo-insulated polyester duct for A/C installations, chiller systems, event tent cooling, and data center cooling runs

The thermo-insulated duct hose for keeping cool air cool. Single-ply acrylic-coated polyester fabric with a spring steel wire helix and external PVC wearstrip — the thermal insulation layer is the point. Standard PVC or coated fabric duct lets cool air warm up significantly between source and delivery, hurting A/C and chiller performance. Arctic Duct 3 maintains temperature in transit, which is increasingly critical for two growing markets: summer event cooling (tents, outdoor venues, mobile A/C deployment) and data center and server room cooling, where precise temperature control between the chiller and the rack is a hard requirement, not a nice-to-have. Built specifically for A/C ventilation, chiller installs, thermo-insulated heating and cooling, HVAC installations, and event tent cooling. Rated -20°F to 180°F.

Best for:

• A/C and chiller system installation (commercial HVAC)
• Data center and server room cooling — keeping chilled air cool to the rack
• Hot-aisle / cold-aisle containment and precision cooling infrastructure
• Summer event tent A/C and outdoor venue cooling
• Cold storage and thermo-controlled industrial environments
• Permanent HVAC installs where temperature loss in transit hurts system efficiency
• Buyers needing A/C-rated ducting in smaller sizes (4-24") — for jobsite portable heating in larger 12"+ sizes, see our Portable Heating & Dehumidification Duct Hose below

Why this hose:

• Thermo-insulated construction — keeps cool air cool, which is the differentiator that justifies the price vs cheaper PVC duct
• Acrylic-coated polyester fabric reinforced with a spring steel wire helix
• External PVC wearstrip for abrasion protection on permanent installs
• Available in 4" through 24" sizes — covers small residential A/C through large commercial chiller runs
• Built specifically for chiller, A/C ventilation, and thermo-insulated heating/cooling applications
• Flame retardant rated for jobsite and install code compliance

Sizes 4"–24" ID. Standard 25 ft stock lengths.

Equipment compatibility: Compatible with commercial A/C and chiller installations (Trane, Carrier, Daikin, York), data center precision cooling systems (Liebert/Vertiv, Stulz, Schneider Electric/APC), hot-aisle/cold-aisle containment infrastructure, server room CRAC and CRAH units, portable A/C deployments for event venues, and cold-storage HVAC installs. Verify intake diameter before ordering.

Heavy-duty large-format PVC duct hose for portable heating, jobsite drying, dehumidification, and event tent warming

The portable jobsite duct hose for moving warm or dry air at scale. High-strength heat-welded PVC vinyl-coated polyester fabric with a spring steel wire helix and heavy-duty external PVC wearstrip — built for the wear-and-tear of jobsite use: dragging, repositioning, rolling onto storage straps, working through dust and moisture. Standard with wire ropes, nylon rings, and belted cuffs each end plus integrated storage straps. Designed for portable and temporary heating, jobsite drying and dehumidification, and event tent heating. Available in 12"–36" sizes for high-volume air movement. Rated -20°F to 180°F. UV stabilized to prevent mold and mildew during storage between jobs.

Best for:

• Portable jobsite heating equipment (construction heaters, indirect-fired heaters, air movers)
• Jobsite drying and dehumidification — water damage restoration, basement drying, concrete drying
• Event tent heating for outdoor venues and seasonal events
• Industrial drying systems requiring large-format ducting
• Humidity control in mining, construction, and storage environments
• Buyers needing large-format (12"+) heating ducting — for smaller A/C and chiller applications in 4-24" sizes, see our A/C Cooling & Chiller Ventilation Hose above

Why this hose:

• Large-format only — 12" through 36" sizes for high-volume air movement
• High-strength heat-welded PVC vinyl construction handles jobsite wear
• Heavy-duty external PVC wearstrip protects against drag damage
• Wire ropes, nylon rings, and belted cuffs included for fast connection and easier storage
• UV stabilized — won't degrade during outdoor storage between jobs
• Flame retardant rated for jobsite and event venue safety compliance

Sizes 12"–36" ID. Standard 25 ft stock lengths. Built-in storage straps and belted cuffs.

Equipment compatibility: Compatible with commercial and industrial portable heating equipment (Master, ProTemp, Mr. Heater, Heatstar), jobsite drying systems (Dri-Eaz, Phoenix, B-Air), water damage restoration setups, dehumidification rigs, event tent heaters, and high-volume mining and construction ventilation. Verify intake diameter before ordering.

Need higher temperatures? The FX-400 (-60°F to 400°F, polyester construction) handles industrial drying systems and cement drying. The FX-550 (-50°F to 550°F, silicone-coated fiberglass) handles severe-duty high-temp drying and heating applications. Same large-format jobsite design.