Fittings, Valves & Couplers

40 Items

NEW
MERLIN
Color-Coded Automotive Coupler and Plug Set, 14 Pc.
Color-Coded Automotive Coupler and Plug Set, 14 Pc.
^$19⁹⁹
In-Store Only
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NEW
MERLIN
Color-Coded Industrial Coupler and Plug Kit, 14 Pc.
Color-Coded Industrial Coupler and Plug Kit, 14 Pc.
^$19⁹⁹
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NEW
MERLIN
Aluminum High Flow Quick Coupler Set, 4 Pc.
Aluminum High Flow Quick Coupler Set, 4 Pc.
^$9⁹⁹
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MERLIN
3/8 in. Automotive Quick Coupler and Plug Set, 4 Pc.
3/8 in. Automotive Quick Coupler and Plug Set, 4 Pc.
^$8⁹⁹
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CENTRAL PNEUMATIC
Brass Industrial Quick Coupler Set, 4 Pc.
Brass Industrial Quick Coupler Set, 4 Pc.
^$3⁹⁹
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CENTRAL PNEUMATIC
Brass Industrial Quick Coupler Starter Set, 5 Pc.
Brass Industrial Quick Coupler Starter Set, 5 Pc.
^$4⁹⁹
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MERLIN
Brass Industrial Coupler Connector Set, 5 Pc.
Brass Industrial Coupler Connector Set, 5 Pc.
^$6⁹⁹
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CENTRAL PNEUMATIC
Industrial Quick Coupler and Plug Set, 5 Pc.
Industrial Quick Coupler and Plug Set, 5 Pc.
^$3⁷⁹
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MERLIN
Steel Industrial Quick Coupler Set, 5 Pc.
Steel Industrial Quick Coupler Set, 5 Pc.
^$4⁷⁹
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NEW
MERLIN
1/2 in. Steel Industrial Quick Coupler Set, 4 Pc.
1/2 in. Steel Industrial Quick Coupler Set, 4 Pc.
^$13⁹⁹
In-Store Only
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NEW
MERLIN
5-in-1 Safety Coupler
5-in-1 Safety Coupler
^$9⁹⁹
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CENTRAL PNEUMATIC
1/4 In. x 3/8 In. Automotive Series Coupler and Plug Kit 4 Pc
1/4 In. x 3/8 In. Automotive Series Coupler and Plug Kit 4 Pc
^$8⁴⁹
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MERLIN
1/4 in. Male Brass Industrial Plug
1/4 in. Male Brass Industrial Plug
^$2⁷⁹
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MERLIN
1/4 in. Female Brass Industrial Plug
1/4 in. Female Brass Industrial Plug
^$2⁷⁹
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MERLIN
1/4 in. Male Brass Industrial Coupler
1/4 in. Male Brass Industrial Coupler
^$4³⁹
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MERLIN
1/4 in. Female Brass Industrial Coupler
1/4 in. Female Brass Industrial Coupler
^$4³⁹
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MERLIN
1/4 in. Male Steel Automotive Plug
1/4 in. Male Steel Automotive Plug
^$1²⁹
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MERLIN
1/4 in. Female Steel Automotive Plug
1/4 in. Female Steel Automotive Plug
^$1³⁹
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MERLIN
1/4 in. Male Steel Industrial Coupler
1/4 in. Male Steel Industrial Coupler
^$3³⁹
In-Store Only
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MERLIN
1/4 in. Female Steel Automotive Coupler
1/4 in. Female Steel Automotive Coupler
^$3³⁹
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MERLIN
1/4 in. Male Steel Industrial Plug
1/4 in. Male Steel Industrial Plug
^$1³⁹
In-Store Only
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MERLIN
1/4 in. Female Steel Industrial Plug
1/4 in. Female Steel Industrial Plug
^$1³⁹
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MERLIN
1/4 in. Male Steel Automotive Coupler
1/4 in. Male Steel Automotive Coupler
^$3³⁹
In-Store Only
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MERLIN
1/4 in. Female Steel Industrial Coupler
1/4 in. Female Steel Industrial Coupler
^$3³⁹
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MERLIN
1/4 in. Male Brass Universal Coupler
1/4 in. Male Brass Universal Coupler
^$4³⁹
In-Store Only
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MERLIN
1/4 in. Female Brass Universal Coupler
1/4 in. Female Brass Universal Coupler
^$4³⁹
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MERLIN
1/4 in. Air Hose Swivel Connector
1/4 in. Air Hose Swivel Connector
^$4⁹⁹
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MERLIN
1/4 in. Male Industrial Swivel Plug
1/4 in. Male Industrial Swivel Plug
^$3⁴⁹
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CENTRAL PNEUMATIC
3-Way Quick Coupling Manifold
3-Way Quick Coupling Manifold
^$8⁹⁹
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MERLIN
3-Way Industrial Quick Coupling Manifold
3-Way Industrial Quick Coupling Manifold
^$13⁹⁹
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MERLIN
3/8 In Full Port Ball Valve
3/8 In Full Port Ball Valve
^$4⁴⁹
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MERLIN
1/2 in. to 3/8 In. Compressor Shut-Off Kit
1/2 in. to 3/8 In. Compressor Shut-Off Kit
^$6⁹⁹
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MERLIN
1/4 In Full Port Ball Valve
1/4 In Full Port Ball Valve
^$3⁹⁹
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MERLIN
1/4 in. NPT Brass T-Connector
1/4 in. NPT Brass T-Connector
^$3⁹⁹
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MERLIN
Male Brass Pipe Coupling Set, 2 Pc.
Male Brass Pipe Coupling Set, 2 Pc.
^$3⁹⁹
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MERLIN
Female Brass Pipe Coupling Set, 2 Pc.
Female Brass Pipe Coupling Set, 2 Pc.
^$3²⁹
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Fittings, Valves & Couplers

Find a large selection of durable, high-quality fittings, valves & couplers at Harbor Freight. Lightweight, high-strength construction.

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