8MM Rubber Vacuum Hose Tubing - Fits 5/16" to 3/8" Connections - 1FT

8mm Rubber Vacuum Hose
Built for durability and reliability in demanding vacuum work.
Our 8mm Rubber Vacuum Hose is made from high-quality gum rubber with a thick, 3mm wall that holds a strong, consistent vacuum seal without collapsing. That makes it just as at home on a lab bench as it is under the hood. It fits securely on 5/16" to 3/8" barbed connections, flexes easily for tight routing, and resists the tears and punctures that come with everyday use.
Whether you are pulling a hard vacuum on a rotovap or routing a booster line in an engine bay, it gives you the durability and steady performance you can count on. Sold by the foot in 1 ft increments, so you order exactly what you need.
Purchased in 1 foot sections. Set the quantity to the number of feet you need. For vacuum and industrial use. Not a certified food-grade or potable-water line.
Gum Rubber Very Flexible Fits 5/16" to 3/8" Sold by the Foot
Tear-Resistant: Resists tears and punctures, so it holds up even with regular use.
Holds Its Shape: The thick 3mm wall keeps the line from collapsing under vacuum, up to 29 in. Hg.
Universal Fit: Seats securely on 5/16" to 3/8" barbed connections.
Key specs at a glance
8 mm ID
Inner diameter. Fits standard vacuum lines.
14 mm OD
3mm thick wall resists collapse and kinking.
45 Shore A
Soft durometer. Very flexible for tight routing.
29 in. Hg
Maximum vacuum at 72°F. Holds a strong seal.
Where this hose earns its keep

Lab vacuum systems: rotovaps, vacuum filtration, cold traps, desiccators, and vacuum ovens. The thick wall keeps flow steady under a hard pull.
Automotive & small engine: brake booster and manifold lines, carburetor and emissions routing, and hooking up vacuum gauges.
Industrial & shop: pump hookups, transfer lines, and general low-pressure vacuum plumbing. Easy to route and re-route.

Tip: add a hose clamp on barbed fittings for a leak-tight seal under full vacuum.
Not sure it fits your setup, or need a specific length or quantity? We are happy to help you spec it out.
Technical Specifications
Specification
Detail
Material
Gum Rubber
Inner Diameter
8mm
Outer Diameter
14mm
Wall Thickness
3mm
Length
Sold in 1 ft increments
Hardness Rating
Soft
Hardness
Durometer 45A
Flexibility
Very Flexible
Temperature Range
-70°F to 180°F
Maximum Vacuum
29 in. of Hg @ 72°F
Compatible Fittings
Barbed connections, 5/16" to 3/8"
Color
Beige
FAQ

Is this vacuum hose sold by the foot?

Yes. It is sold in 1 foot increments, so the quantity you order equals the number of feet you get. Order 10 for a 10-foot length.
What fittings does it fit?

It is sized for 5/16" to 3/8" barbed connections. With an 8mm inner diameter it stretches on snug, and a hose clamp locks it down for a vacuum-tight seal.
Will it collapse under vacuum?

No. That is what the 3mm wall is for. It is rated to 29 in. Hg at 72°F and holds its bore under a hard pull, so flow stays consistent between your pump and your equipment.
What is the temperature range?

-70°F to 180°F, which covers most lab benchtop and automotive engine-bay conditions.
Is it food or potable-water safe?

This is a gum-rubber vacuum and industrial hose, not a certified food-grade or potable line.
Can I get a full spool or bulk pricing?

Yes.

Specifications
Model:
Rubber Vacuum hose
Inner Diameter:
8mm
Outer Diameter:
14mm
Temperature Range:
-70°F to 180°F
Maximum Vacuum:
29 in. of Hg @ 72°F