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Twin–Line
Tube
EPDM synthetic rubber compatible with
oxygen and acetylene gases
Cover
EPDM synthetic rubber smooth
surface
Reinforcement
Spiral synthetic yarn
Welding Grade R–Type VD
For welding service. Meets RMA
IP-7 standard for Grade R welding
hose. Rated to temperatures of
-40°F to 120°F (-40°C to 49°C).
Product Name
Part #
Hose Color Hose ID Packaging
Length Material #
in.
ft.
Twin–Line Welding Hose
Grade R
20027151
Red/Green
1/4"
1/4" Grade R Type
BB Fit.
25'
569-588
Twin–Line Welding Hose
Grade R
20027152
Red/Green
1/4”
1/4" Grade R Type
BB Fit.
50'
569-588
Twin–Line Welding Hose
Grade R
20027153
Red/Green
1/4”
1/4" Grade R Type
BB Fit.
100'
569-588
Welding Hose Compatibility Chart
Twin–Line
Tube
Synthetic rubber compatible with all
common welding fuel gases
Cover
Chemivic
™
synthetic rubber smooth
cover
Reinforcement
Spiral synthetic yarn
Welding Grade T–Type VD
For welding service. Meets RMA IP-7
and CGA E-1 standards for Grade T
welding hose. Non-Conductive.
Product Name
Part #
Hose Color Hose ID Packaging
Length Material #
in.
ft.
Twin–Line Welding Hose
Grade T
20027453
Red/Green
1/4”
1/4" Grade T Type
BB Fit.
50'
569-618
Twin–Line Welding Hose
Grade T
20027454
Red/Green
1/4”
1/4" Grade T Type
BB Fit.
100'
569-618
Twin–Line Welding Hose
Grade T
20027493
Red/Green
3/8”
3/8" Grade T Type
BB Fit.
25'
569-618
Twin–Line Welding Hose
Grade T
20027495
Red/Green
3/8”
3/8" Grade T Type
BB Fit.
50'
569-618
Twin–Line Welding Hose
Grade T
20027497
Red/Green
3/8”
3/8" Grade T Type
BB Fit.
100'
569-618
Rated to temperatures of -40°F to
120°F (-40°C to 49°C).
Oxygen
Acetylene
Fuel
Gases*
Flame & Oil
Resistant Tube
Flame & Oil
Resistant Tube
Green Red
Red
Twin Line (Grade R)
Yes
Yes
No
No
No
Twin Line (Grade RM)
Yes
Yes
No
No
Yes
Twin Line (Grade T)
Yes
Yes
Yes
Yes
Yes
Single Line (Grade R)
Yes
Yes
No
No
No
Single Line (Grade RM)
Yes
Yes
No
No
Yes
Single Line (Grade T)
Yes
Yes
Yes
Yes
Yes
*Fuel gases are defined in RMA IP-7 welding hose standard, Flammable compressed gases commonly used in the welding and cutting industry
including, but not limited to, acetylene, hydrogen, methane/natural gas, LP gas, propylene and methylacetylene propadiene stabilized.
RMA IP-7 and CGA E-1
33
Welding