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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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.
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).
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 Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: See table
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Pipe Size | Socket Depth | Material | Color | Specifications Met | Each | |
| 1/2 | 11/16" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 00000 |
| 3/4 | 23/32" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 0000 |
| 1 | 1" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 0000 |
| 1 1/4 | 1 1/4" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 0000 |
| 1 1/2 | 1 5/16" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 0000 |
| 2 | 1 3/8" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 0000 |
| 2 1/2 | 2" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 00000 |
| 3 | 2" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 00000 |
| 4 | 2" | PVC Plastic | White | ASTM D1784, NSF/ANSI 61 | 00000000 | 00000 |
| 6 | 3 1/4" | PVC Plastic | White | ASTM D1784, ASTM D1785, NSF/ANSI 61 | 00000000 | 000000 |
| 8 | 4 1/4" | PVC Plastic | White | ASTM D1784, ASTM D1785, NSF/ANSI 61 | 00000000 | 00000000 |
- For Use With: Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785
- Pipe Nipples and Pipe: Use PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| DIN Size, mm | Socket Depth, mm | Material | Color | Max. Pressure | Each | |
| 20 | 16 | PVC Plastic | Dark Gray | 230 psi @ 72° F | 00000000 | 000000 |
| 25 | 19 | PVC Plastic | Dark Gray | 230 psi @ 72° F | 00000000 | 00000 |
| 32 | 22 | PVC Plastic | Dark Gray | 230 psi @ 72° F | 00000000 | 00000 |
| 50 | 31 | PVC Plastic | Dark Gray | 230 psi @ 72° F | 00000000 | 00000 |
| 63 | 38 | PVC Plastic | Dark Gray | 230 psi @ 72° F | 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 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
(A) | (B) | ||||||
|---|---|---|---|---|---|---|---|
| Pipe Size | Socket Depth | Pipe Size | Socket Depth | Material | Color | Each | |
| 3/4 | 23/32" | 1/2 | 11/16" | PVC Plastic | White | 00000000 | 00000 |
| 1 | 7/8" | 3/4 | 23/32" | PVC Plastic | White | 00000000 | 0000 |
| 1 1/2 | 1 3/32" | 3/4 | 23/32" | PVC Plastic | White | 00000000 | 00000 |
| 1 1/2 | 1 3/32" | 1 | 7/8" | PVC Plastic | White | 00000000 | 00000 |
| 2 | 1 5/32" | 1 | 7/8" | PVC Plastic | White | 00000000 | 00000 |
| 2 | 1 5/32" | 1 1/2 | 1 3/32" | PVC Plastic | White | 00000000 | 00000 |
| 3 | 1 7/8" | 2 | 1 5/32" | PVC Plastic | White | 00000000 | 00000 |
| 4 | 2" | 2 | 1 5/32" | PVC Plastic | White | 00000000 | 00000 |
| 4 | 2" | 3 | 1 7/8" | PVC Plastic | White | 00000000 | 00000 |
Thick-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater 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).
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 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 | 000000 |
| 1/2 | 29/32" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 3/4 | 1" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 | 1 1/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 1/4 | 1 9/32" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 1/2 | 1 3/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 1/2 | 1 25/32" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 3 | 1 7/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 4 | 2 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 6 | 3 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 8 | 4 1/4" | PVC Plastic | Dark Gray | 00000000 | 00000000 |
- 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 | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Material | Color | Each | |
| 3/4 | 1/2 | 7/8" | 1" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 1 | 1/2 | 7/8" | 1 1/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 | 3/4 | 1" | 1 1/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 1/2 | 7/8" | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 3/4 | 1" | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 1 | 1 1/8" | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 1 1/2 | 1 3/8" | 1 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 1/2 | 2 | 1 1/2" | 1 3/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 3 | 1 | 1 1/8" | 1 7/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 3 | 1 1/2 | 1 1/16" | 1 7/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 3 | 2 | 1 1/2" | 1 7/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 4 | 2 | 1 1/2" | 2 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 4 | 3 | 1 7/8" | 2 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 6 | 3 | 2 1/4" | 3 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 6 | 4 | 2 1/4" | 3 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 8 | 6 | 2 1/4" | 3 1/4" | PVC Plastic | Dark Gray | 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 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
CPVC Pipe Fittings for Hot Water
Made of CPVC, these fittings can handle high temperatures. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. They also have good corrosion resistance. These fittings are comparable to Corzan. Some meet ASTM D1784 specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Schedule 80 fittings have thick, strong walls for heavy duty, industrial applications.
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 Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sodium Hydroxide (50%), Sulfuric Acid (75%), Water
- Maximum Temperature: 200° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic
- Flanges: Use Class 150 CPVC Plastic
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a CPVC primer and cement (also known as solvent weld).
| Pipe Size | Socket Depth | Material | Schedule | Color | Max. Pressure | Each | |
| 1/4 | 5/8" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 000000 |
| 1/2 | 29/32" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 3/4 | 1" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 1 | 1 1/8" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 1 1/2 | 1 13/32" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 2 | 1 1/2" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 3 | 1 7/8" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 000000 |
| 4 | 2 1/4" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 000000 |