O-Ring Plug Pipe Fittings

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Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Acetic Acid (White Vinegar) (75% Concentration)

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844 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces.

Extreme-Pressure Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

High-Pressure Steel Threaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Suitable for use in fire-protection applications, these flanges are brittle and can be quickly opened with the strike of a sledge hammer.

High-Pressure Steel Threaded
SAE Two-Piece Pipe Flanges

Combine an adapter with a two-piece pipe flange (sold separately) to build a customized flange connection for noncorrosive environments.

FM-Approved Iron Pipe Fittings with Flanged Ends

FM approved, these fittings are suitable for use in fire-protection systems. All have flat-surface flanged ends that only mate to another same-size flat-surface flange, pump, or valve with a gasket to create an access point in a pipeline.

FM-Approved Low-Pressure Cast
Iron Unthreaded Pipe Flanges

FM-approved for fire protection applications, these flanges are cast iron, so they're brittle and can be quickly opened by hitting them with a sledge hammer.

Low-Pressure Steel Unthreaded Pipe Flanges

Bolt two flanges of the same size together with a gasket to create an access point in a pipe line.

High-Pressure Steel Unthreaded Pipe Flanges

Forged for extra strength, these heavy duty unthreaded flanges can withstand high-pressure applications.

High-Pressure Steel Unthreaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

Stainless Steel Pipe and Pipe Fittings

Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Use these fittings in extreme-pressure conditions up to 15,000 psi.

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

These fittings are made to tighter tolerances than other stainless steel pipe fittings. They are also known as instrumentation fittings.

Miniature Medium-Pressure Stainless
Steel Threaded Pipe Fittings

When space is at a premium choose these compact fittings.

High-Pressure Stainless Steel
Threaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

Low-Pressure Stainless
Steel Threaded Pipe Flanges

Also known as Pressure Class 150 flanges, these corrosion-resistant flanges are designed for low-pressure pipe applications.

High-Pressure Stainless Steel Threaded
SAE Two-Piece Pipe Flanges

Also known as Code 61 SAE hydraulic flanges, these let you create an access point in a high-pressure hydraulic line.

High-Pressure Stainless Steel
Unthreaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges.

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Use these heavy duty forged flanges for high-pressure applications.

Low-Pressure Stainless Steel
Unthreaded Pipe Flanges

Bolt two same-size flanges together with a gasket to create an access point within a pipe line.

Brass and Bronze Pipe and Pipe Fittings

Miniature High-Pressure
Brass Threaded Pipe Fittings

When space in your pipe line is limited, choose these miniature fittings that are one inch or less in length.

Miniature Low-Pressure
Brass Threaded Pipe Fittings

Less than an inch in length, these miniature fittings work well in low-pressure pipe lines that are tight on space.

Low-Pressure Brass and
Bronze Threaded Pipe Flanges

Also known as Pressure Class 150 flanges, these brass flanges are designed for low-pressure applications.

Brass and Bronze Unthreaded Pipe Flanges

Bolt these flanges to another same-size flange with a gasket to create an access point within a pipe line. They are also known as Silbraze flanges.

Aluminum Pipe and Pipe Fittings

Miniature Medium-Pressure
Aluminum Threaded Pipe Fittings

Their small size makes these miniature fittings a good choice for cramped, confined spaces.

Low-Pressure Aluminum Threaded Pipe Flanges

Also known as Pressure Class 125 flanges, these are for use in low-pressure applications. Flanges are aluminum, which is lightweight with good corrosion resistance.

Aluminum Unthreaded Pipe Flanges

Use these unthreaded flanges in low-pressure applications. Also known as Pressure Class 125 flanges.

Plastic Pipe and Pipe Fittings

Aboveground Standard-Wall PVC Pipe
Flanges for Drain, Waste, and Vent

Bolt two same-size flanges together with a gasket to create an access point within a line. Also known as Schedule 40 flanges, they are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

CPVC Pipe Flanges for Hot Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Pressure Class 150 flanges. Use in high-temperature plumbing and water supply applications up to 200° F.

Fiberglass Pipe Flanges for Corrosive Chemicals

Flanges have excellent corrosion resistance to handle a wide range of acids and other highly-corrosive chemicals. Use in metal surface treating applications, plating solution lines, and other chemical process applications. They are reinforced with fiberglass layers for better strength and durability than any of our other pipe flanges for chemicals. Bolt two same-size flanges together with a gasket to create an access point within a line.

High-Temperature PTFE
Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Made of PTFE, they can handle a wider temperature range than any of our other plastic pipe flanges for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Flame-Retardant PVDF Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges meet UL 94 V-0 for flame retardance to delay the spread of flames to valuable equipment. They are PVDF, which is comparable to Kynar, and has the chemical resistance to stand up to solvents and other harsh substances. Also known as Pressure Class 150 flanges.

High-Purity Polypropylene Pipe
Flanges for Corrosive Chemicals

The inside of these flanges won’t leach contaminants into your line or accumulate particles—they’re polished to an ultra-smooth 12 Ra finish, which also makes them easy to clean. Made of polypropylene, they resist organic solvents, acids, and alkalis better than CPVC pipe flanges.

Drain, Waste, and Vent ABS
Pipe Flanges for Chemicals

Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges are an economical option for gravity-flow chemical waste systems. They are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.

Thick-Wall Plastic Pipe Flanges for Water

Bolt two same-size flanges together with a gasket to create an access point within a line. They are also known as Pressure Class 150 flanges. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation.

UV-Resistant Polypropylene
Pipe Flanges for Chemicals

Use these polypropylene flanges in outdoor environments—they resist the damaging effects of ultraviolet light. They have the chemical resistance to stand up to acids, solvents, and other harsh substances. Bolt two same-size flanges together with a gasket to create an access point within a line. Flanges are also known as Pressure Class 150 flanges.

How to Identify and Measure Fittings

Iron and Steel Pipe and Pipe Fittings

Compact Extreme-PressureSteel Threaded Pipe Fittings

Extreme-Pressure Steel Threaded Pipe Fittings

High-Pressure Steel Threaded SAE Pipe Flanges

FM-Approved Low-PressureCast Iron Threaded Pipe Flanges

High-Pressure Steel ThreadedSAE Two-Piece Pipe Flanges

FM-Approved Iron Pipe Fittings with Flanged Ends

FM-Approved Low-Pressure CastIron Unthreaded Pipe Flanges

Low-Pressure Steel Unthreaded Pipe Flanges

High-Pressure Steel Unthreaded Pipe Flanges

High-Pressure Steel Unthreaded SAE Pipe Flanges

Stainless Steel Pipe and Pipe Fittings

Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Precision Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Miniature Medium-Pressure StainlessSteel Threaded Pipe Fittings

High-Pressure Stainless SteelThreaded SAE Pipe Flanges

Low-Pressure StainlessSteel Threaded Pipe Flanges

High-Pressure Stainless Steel ThreadedSAE Two-Piece Pipe Flanges

High-Pressure Stainless SteelUnthreaded SAE Pipe Flanges

High-Pressure Stainless SteelUnthreaded Pipe Flanges

Low-Pressure Stainless SteelUnthreaded Pipe Flanges

Brass and Bronze Pipe and Pipe Fittings

Miniature High-PressureBrass Threaded Pipe Fittings

Miniature Low-PressureBrass Threaded Pipe Fittings

Low-Pressure Brass andBronze Threaded Pipe Flanges

Brass and Bronze Unthreaded Pipe Flanges

Aluminum Pipe and Pipe Fittings

Miniature Medium-PressureAluminum Threaded Pipe Fittings

Low-Pressure Aluminum Threaded Pipe Flanges

Aluminum Unthreaded Pipe Flanges

Plastic Pipe and Pipe Fittings

Aboveground Standard-Wall PVC PipeFlanges for Drain, Waste, and Vent

CPVC Pipe Flanges for Hot Water

Fiberglass Pipe Flanges for Corrosive Chemicals

High-Temperature PTFEPipe Flanges for Chemicals

Flame-Retardant PVDF Pipe Flanges for Chemicals

High-Purity Polypropylene PipeFlanges for Corrosive Chemicals

Drain, Waste, and Vent ABSPipe Flanges for Chemicals

Thick-Wall Plastic Pipe Flanges for Water

UV-Resistant PolypropylenePipe Flanges for Chemicals

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

High-Pressure Steel Threaded
SAE Two-Piece Pipe Flanges

FM-Approved Low-Pressure Cast
Iron Unthreaded Pipe Flanges

Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Miniature Medium-Pressure Stainless
Steel Threaded Pipe Fittings

High-Pressure Stainless Steel
Threaded SAE Pipe Flanges

Low-Pressure Stainless
Steel Threaded Pipe Flanges

High-Pressure Stainless Steel Threaded
SAE Two-Piece Pipe Flanges

High-Pressure Stainless Steel
Unthreaded SAE Pipe Flanges

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Low-Pressure Stainless Steel
Unthreaded Pipe Flanges

Miniature High-Pressure
Brass Threaded Pipe Fittings

Miniature Low-Pressure
Brass Threaded Pipe Fittings

Low-Pressure Brass and
Bronze Threaded Pipe Flanges

Miniature Medium-Pressure
Aluminum Threaded Pipe Fittings

Aboveground Standard-Wall PVC Pipe
Flanges for Drain, Waste, and Vent

High-Temperature PTFE
Pipe Flanges for Chemicals

High-Purity Polypropylene Pipe
Flanges for Corrosive Chemicals

Drain, Waste, and Vent ABS
Pipe Flanges for Chemicals

UV-Resistant Polypropylene
Pipe Flanges for Chemicals