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About Conduit
Compare rigid and flexible conduit materials and identify the trade size for compatible fittings.
Liquid-Tight Flexible Plastic (LFNC-B) Conduit and Fittings
Straight Electrical Box Connectors
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Push-In × Threaded | Twist-In × Threaded |
Conduit Connection | Knockout Connection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 3/8 | Female | 1/2 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K42 | 00000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K43 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K44 | 0000 | ||
| 1 | Female | 1 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K45 | 0000 | ||
| 1 1/4 | Female | 1 1/4 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K46 | 00000 | ||
| 1 1/2 | Female | 1 1/2 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K47 | 00000 | ||
| 2 | Female | 2 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K48 | 00000 | ||
Twist-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 3/8 | Female | 1/2 | NPT | Male | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K412 | 0000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K422 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K432 | 0000 | ||
| 1 | Female | 1 | NPT | Male | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K541 | 0000 | ||
90° Elbow Electrical Box Connectors
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Push-In × Threaded | Twist-In × Threaded |
Conduit Connection | Knockout Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Lg. | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | ||||||||||||
Nylon | ||||||||||||
| 3/8 | Female | 1/2 | NPT | Male | 3 1/8" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K61 | 00000 | ||
| 1/2 | Female | 1/2 | NPT | Male | 3 1/8" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K62 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | 3 5/8" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K63 | 00000 | ||
| 1 | Female | 1 | NPT | Male | 4 1/8" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K64 | 00000 | ||
| 1 1/4 | Female | 1 1/4 | NPT | Male | 5 3/16" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K65 | 00000 | ||
| 1 1/2 | Female | 1 1/2 | NPT | Male | 5 3/16" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K66 | 00000 | ||
| 2 | Female | 2 | NPT | Male | 5 13/16" | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K67 | 00000 | ||
Twist-In Conduit Connection × Threaded Knockout Connection | ||||||||||||
Nylon | ||||||||||||
| 3/8 | Female | 1/2 | NPT | Male | 2 1/8" | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K512 | 0000 | ||
| 1/2 | Female | 1/2 | NPT | Male | 2 1/8" | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K522 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | 2 7/8" | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K532 | 0000 | ||
| 1 | Female | 1 | NPT | Male | 2 3/4" | Gray | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K551 | 00000 | ||
Adjustable-Angle Electrical Box Connectors
Conduit Connection | Knockout Connection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 3/8 | Female | 1/2 | NPT | Male | Gray | Nylon Locknut | CSA Certified, UL Listed | 75145K16 | 00000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K182 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Gray | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K192 | 00000 | ||
| 1 | Female | 1 | NPT | Male | Gray | Nylon Locknut | CSA Certified, UL Listed | 75145K212 | 00000 | ||
Ultra-Flexible Plastic (MPT) Conduit and Fittings
Straight Electrical Box Connectors
![]() | ![]() |
Push-In × Threaded | Twist-In × Threaded |
Conduit Connection | Knockout Connection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 1/4 | Female | — | PG (PG-7) | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K51 | 00000 | ||
| 3/8 | Female | 1/2 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K52 | 0000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K53 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K54 | 0000 | ||
| 1 | Female | 1 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K55 | 0000 | ||
| 1 1/4 | Female | 1 1/4 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K56 | 00000 | ||
| 1 1/2 | Female | 1 1/2 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K57 | 00000 | ||
| 2 | Female | 2 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K58 | 00000 | ||
Twist-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 3/8 | Female | 1/2 | NPT | Male | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K411 | 0000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K421 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K431 | 0000 | ||
| 1 | Female | 1 | NPT | Male | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K542 | 0000 | ||
90° Elbow Electrical Box Connectors
![]() | ![]() |
Push-In × Threaded | Twist-In × Threaded |
Conduit Connection | Knockout Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Lg. | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | ||||||||||||
Nylon | ||||||||||||
| 3/8 | Female | 1/2 | NPT | Male | 3 1/8" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K71 | 00000 | ||
| 1/2 | Female | 1/2 | NPT | Male | 3 1/8" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K72 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | 3 5/8" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K73 | 00000 | ||
| 1 | Female | 1 | NPT | Male | 4 1/8" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K74 | 00000 | ||
| 1 1/4 | Female | 1 1/4 | NPT | Male | 5 3/16" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K75 | 00000 | ||
| 1 1/2 | Female | 1 1/2 | NPT | Male | 5 3/16" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K76 | 00000 | ||
| 2 | Female | 2 | NPT | Male | 5 13/16" | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K77 | 00000 | ||
Twist-In Conduit Connection × Threaded Knockout Connection | ||||||||||||
Nylon | ||||||||||||
| 3/8 | Female | 1/2 | NPT | Male | 2 1/8" | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K511 | 0000 | ||
| 1/2 | Female | 1/2 | NPT | Male | 2 1/8" | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K521 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | 2 7/8" | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K531 | 0000 | ||
| 1 | Female | 1 | NPT | Male | 2 3/4" | Black | Zinc Alloy Locknut | CSA Certified, UL Listed | 9106K552 | 00000 | ||
Adjustable-Angle Electrical Box Connectors
Conduit Connection | Knockout Connection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Conduit Trade Size | Gender | Pipe Size | Thread Type | Gender | Color | Includes | Specs. Met | Each | |||
Push-In Conduit Connection × Threaded Knockout Connection | |||||||||||
Nylon | |||||||||||
| 3/8 | Female | 1/2 | NPT | Male | Black | Nylon Locknut | CSA Certified, UL Listed | 75145K91 | 00000 | ||
| 1/2 | Female | 1/2 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K181 | 0000 | ||
| 3/4 | Female | 3/4 | NPT | Male | Black | Zinc-Plated Steel Locknut | C-UL Listed, UL Listed | 75145K191 | 00000 | ||
| 1 | Female | 1 | NPT | Male | Black | Nylon Locknut | CSA Certified, UL Listed | 75145K211 | 00000 | ||

































