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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.
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Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 80 pipe–they have thicker, stronger walls than standard-wall fittings so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
To prevent leaks in threaded connections, apply a sealant to the male threads. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | Socket Depth | Material | Color | Each | |
1/4 | 5/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
3/8 | 3/4" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1/2 | 15/16" | PVC Plastic | Dark Gray | 0000000 | 0000 |
3/4 | 1" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 | 1 1/8" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/4 | 1 9/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/2 | 1 13/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
2 | 1 1/2" | PVC Plastic | Dark Gray | 0000000 | 00000 |
2 1/2 | 1 7/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
3 | 1 31/32" | PVC Plastic | Dark Gray | 0000000 | 00000 |
4 | 2 1/2" | PVC Plastic | Dark Gray | 0000000 | 00000 |
5 | 2 5/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
6 | 3 1/16" | PVC Plastic | Dark Gray | 00000000 | 00000 |
8 | 4 3/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
10 | 5 1/32" | PVC Plastic | Dark Gray | 00000000 | 000000 |
12 | 6" | PVC Plastic | Dark Gray | 00000000 | 000000 |

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | Material | Color | Each | |
NPT Threads | ||||
---|---|---|---|---|
1/4 | PVC Plastic | Dark Gray | 0000000 | 00000 |
3/8 | PVC Plastic | Dark Gray | 0000000 | 0000 |
1/2 | PVC Plastic | Dark Gray | 0000000 | 0000 |
3/4 | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/4 | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/2 | PVC Plastic | Dark Gray | 0000000 | 0000 |
2 | PVC Plastic | Dark Gray | 0000000 | 00000 |
2 1/2 | PVC Plastic | Dark Gray | 0000000 | 00000 |
3 | PVC Plastic | Dark Gray | 0000000 | 00000 |
4 | PVC Plastic | Dark Gray | 0000000 | 00000 |
6 | PVC Plastic | Dark Gray | 0000000 | 000000 |

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | OD | ID | Wall Thick. | Drive Size | Material | Color | Each | |
2 1/2 | 2 7/8" | 2.323" | 0.276" | 3 17/32" | PVC Plastic | Dark Gray | 00000000 | 000000 |
3 | 3 1/2" | 2.9" | 0.3" | 4 5/32" | PVC Plastic | Dark Gray | 00000000 | 00000 |
4 | 4 1/2" | 3.826" | 0.337" | 5 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
6 | 6 5/8" | 5.761" | 0.432" | 7 9/16" | PVC Plastic | Dark Gray | 00000000 | 000000 |
8 | 8 5/8" | 7.625" | 0.5" | 9 23/32" | PVC Plastic | Dark Gray | 00000000 | 000000 |

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | OD | ID | Wall Thick. | Drive Size | Material | Color | Each | |
1/2 | 27/32" | 0.546" | 0.147" | 1" | PVC Plastic | Dark Gray | 00000000 | 00000 |
3/4 | 1 3/64" | 0.742" | 0.154" | 1 3/16" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 | 1 5/16" | 0.957" | 0.179" | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 1/4 | 1 21/32" | 1.278" | 0.191" | 1 13/16" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 1/2 | 1 29/32" | 1.5" | 0.2" | 2 3/32" | PVC Plastic | Dark Gray | 00000000 | 00000 |
2 | 2 3/8" | 1.939" | 0.218" | 2 9/16" | PVC Plastic | Dark Gray | 00000000 | 00000 |

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | Drive Size | Material | Color | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/4 | 11/16" | PVC Plastic | Dark Gray | 0000000 | 00000 |
3/8 | 25/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1/2 | 31/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
3/4 | 1 3/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 | 1 9/16" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/4 | 1 7/8" | PVC Plastic | Dark Gray | 0000000 | 0000 |
1 1/2 | 2 1/16" | PVC Plastic | Dark Gray | 0000000 | 0000 |
2 | 2 15/32" | PVC Plastic | Dark Gray | 0000000 | 0000 |
2 1/2 | 2 15/16" | PVC Plastic | Dark Gray | 0000000 | 00000 |
3 | 3 19/32" | PVC Plastic | Dark Gray | 0000000 | 00000 |
4 | 4 9/16" | PVC Plastic | Dark Gray | 0000000 | 00000 |
6 | 6 27/32" | PVC Plastic | Dark Gray | 0000000 | 00000 |
Thick-Wall Plastic Pipe Flanges for Water
- For Use With: Drinking Water, Water
- Pressure Class: 150
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Fittings: Use Schedule 80 PVC Plastic
Also known as Pressure Class 150 flanges, these flanges have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They meet NSF/ANSI 61 for drinking water. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. All are PVC, which has good corrosion resistance. They meet ASTM D1784 specifications and testing requirements for material quality.
Warning: Never use plastic pipe flanges and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.


Cap flanges are also known as blind flanges.
Bolt Hole | |||||||||
---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. | Bolt Circle Dia. | Material | Color | Each | |
1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | PVC Plastic | Dark Gray | 00000000 | 00000 |
2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | PVC Plastic | Dark Gray | 00000000 | 000000 |
4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
5 | 10 1/16" | 3/4" | 7/8" | 8 | 8 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.

- For Use With: Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785
- Pipe Nipples and Pipe: Use PVC Plastic
DIN Size, mm | Socket Depth, mm | Material | Max. Pressure | Each | |
Dark Gray | |||||
---|---|---|---|---|---|
12 | 12 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
16 | 14 | PVC Plastic | 230 psi @ 72° F | 00000000 | 0000 |
20 | 20 | PVC Plastic | 230 psi @ 72° F | 00000000 | 0000 |
25 | 25 | PVC Plastic | 230 psi @ 72° F | 00000000 | 0000 |
32 | 32 | PVC Plastic | 230 psi @ 72° F | 00000000 | 0000 |
40 | 26 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
50 | 50 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
63 | 63 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
75 | 44 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
90 | 51 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
110 | 61 | PVC Plastic | 230 psi @ 72° F | 00000000 | 00000 |
160 | 86 | PVC Plastic | 140 psi @ 72° F | 00000000 | 000000 |
High-Pressure Barbed Plastic Pipe Fittings for Water
Use these barbed pipe fittings in industrial plumbing, water processing, and water supply applications up to 200 psi. They meet NSF/ANSI Standard 61 for drinking water. Also known as insert fittings, they have a barbed end that slides into semi-flexible plastic pipe and secures with a clamp (sold separately). Since you don't have to wait for cement to dry, they're quicker to install than socket-connect fittings. Fittings are PVC, which has good strength and corrosion resistance. They meet ASTM D1784 specifications and testing requirements for material quality and ASTM D2609 specifications for barb dimensions.
Note: Barbed pipe fittings are measured by pipe size, which is not an actual measured size, but rather an industry designation.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.

- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D2609, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Semi-Flexible Polyethylene Plastic
Pipe Size | Barb OD | Material | Color | Max. Pressure | Each | |
1/2 | 0.65" | PVC Plastic | Dark Gray | 200 psi @ 72° F | 00000000 | 00000 |
3/4 | 0.85" | PVC Plastic | Dark Gray | 200 psi @ 72° F | 00000000 | 0000 |
1 | 1.08" | PVC Plastic | Dark Gray | 200 psi @ 72° F | 00000000 | 0000 |
1 1/4 | 1.41" | PVC Plastic | Dark Gray | 200 psi @ 72° F | 00000000 | 0000 |
1 1/2 | 1.65" | PVC Plastic | Dark Gray | 160 psi @ 72° F | 00000000 | 0000 |
2 | 2.11" | PVC Plastic | Dark Gray | 160 psi @ 72° F | 00000000 | 00000 |
Flexible Furniture Grommets

Squeeze this flexible grommet to open the center flap—once wire, cable, and cords pass through, the flap closes tightly for dust and debris protection as well as a finished look. Use this grommet to eliminate cord clutter on desktops, countertops, benchtops, and other work surfaces. Push it into place.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. | Flange Dia. | Dp. Under Flange | Temp. Range, °F | For Use Outdoors | Color | Each | |
Santoprene Rubber | |||||||
---|---|---|---|---|---|---|---|
3" | 3 15/32" | 5/8" | -70° to 270° | No | Dark Gray | 0000000 | 000000 |