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We stock gruvlok couplings in sizes ranging from 2" to 6" in ductile iron. We also stock replaceable gaskets and Gruvlok x Weld Nipples, which are used with gruvlok couplings.


Industrial Supply offers a multitude of items ranging from camlocks, hydraulic hose, industrial hose, pipe fittings, hydraulic quick couplers, gauges, and many more industrial type products. If you see something on the site that you would like to know more about, or if there is something that you were looking for in particular that’s not on the site, please contact us at (360) 734-6330 and we’ll be there to help you as we pride ourselves with “Service Being Our Most Important Product”.
Gaskets Gruvlok Lightweight Flexible Coupling Gruvlok x Weld Nipples
We stock gaskets for gruvlok clamp couplings in sizes ranging from 2" to 8" in black buna-n and EPDM.
We stock gruvlok lightweight flexible coupling in sizes ranging from 2" to 6" in ductile iron. These are lightweight and flexible, Series L Style10.
We stock gruvlok x weld nipples in nominal sizes ranging from 2" to 4" in carbon steel and 316 stainless steel. These fittings are designed to provide minimum pressure drop and uniform strength. They also feature a groove in the middle of fitting for a easy locking mechanism.
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Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 2" Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 2"

Our 2" gruvlok lightweight flexible coupling has a ductile iron body with rust inhibiting paint.  These are series L, style 10. This lightweight flexible coupling is designed for applications requiring moderate internal pressure or where weight is a factor. Applications include genreal purpose, mining, irrigation, and compressed air where a deflection of 5% or less is required.

Our Price: $8.83
Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 3" Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 3"

Our 3" gruvlok lightweight flexible coupling has a ductile iron body with rust inhibiting paint.  These are series L, style 10. This lightweight flexible coupling is designed for applications requiring moderate internal pressure or where weight is a factor. Applications include general purpose, mining, irrigation, and compressed air where a deflection of 5% or less is required.

Our Price: $11.88
Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 4" Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 4"

Our 4" gruvlok lightweight flexible coupling has a ductile iron body with rust inhibiting paint.  These are series L, style 10. This lightweight flexible coupling is designed for applications requiring moderate internal pressure or where weight is a factor. Applications include genreal purpose, mining, irrigation, and compressed air where a deflection of 5% or less is required.

Our Price: $15.60
Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 6" Gruvlok - Lightweight Flexible Coupling - Series L - Style 10 - 6"

Our 6" gruvlok lightweight flexible coupling has a ductile iron body with rust inhibiting paint. These are series L, style 10. This lightweight flexible coupling is designed for applications requiring moderate internal pressure or where weight is a factor. Applications include general purpose, mining, irrigation, and compressed air where a deflection of 5% or less is required.

Our Price: $26.03
Gruvlok x Weld Nipples - Steel - 2" Gruvlok x Weld Nipples - Steel - 2"

Our 2" gruvlok x weld nipples are steel. These fittings are designed to provide minimum pressure drop and uniform strength. They also are grooved to allow for some linear expansion and contraction as well as horizontal variance. These features eliminate limited pipeline stresses without the use of costly expansion joints.

Our Price: $9.58
Gruvlok x Weld Nipples - Steel - 3" Gruvlok x Weld Nipples - Steel - 3"

Our 3" gruvlok x weld nipples are steel. These fittings are designed to provide minimum pressure drop and uniform strength. They also are grooved to allow for some linear expansion and contraction as well as horizontal variance. These features eliminate limited pipeline stresses without the use of costly expansion joints.

Our Price: $10.85