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Open-End Pipe Caps

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Pipe & Conduit Open-End Pipe Caps, are a pipe cap that protects external threads on pipe ends, rigid metal conduit ends (RMC) or intermediate metal conduit ends (IMC).

Our pipe thread cap range is made from Polyethylene (PE). These Pipe Thread Protector Caps are sized and designed for positive-gripping power over the threads of the pipe.

Open-end Thread Protectors are available in a choice of colors, including; Black, Blue, Green, Orange, Red and Yellow.

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Product SKUs information
Item Code Price range Availability Color Compatible Nominal Pipe Sizes (All) Buy
RRO1D
$0.0814 - $1.0169 1437 In stock
Orange
1.0 in
RRO1-1/2A
$0.141 - $1.7627 5493 In stock
Black
1-1/2 in
RRO2-1/2B
$0.3481 - $4.6023 3966 In stock
Yellow
2-1/2 in
RRO1-1/2B
$0.141 - $1.7627 428 In stock
Yellow
1-1/2 in
RRO3-1/2B
$0.672 - $8.8779 5040 In stock
Yellow
3-1/2 in
RRO1A
$0.0768 - $1.0169 97700 In stock
Blue
1.0 in
RRO3/4A
$0.0607 - $0.7566 In production
Red
3/4 in
RRO2-1/2A
$0.3481 - $4.6023 58459 In stock
Black
2-1/2 in
RRO2E
$0.1763 - $0.6848 100 In stock
Orange
2.0 in
RRO3-1/2A
$0.6598 - $8.7165 3348 In stock
Black
3-1/2 in
RRO4C
$0.7586 - $10.0569 7131 In stock
Orange
4.0 in
RRO3C
$0.4717 - $6.2358 9514 In stock
Orange
3.0 in
RRO4A
$0.70 - $9.2798 4390 In stock
Blue
4.0 in
RRO5A
$1.60 - $21.3145 139 In stock
Blue
5.0 in
RRO6A
$1.9035 - $25.0994 In production
Blue
6.0 in
RRO8A
$2.7389 - $36.0937 80 In stock
Black
8 in
RRO1-1/4A
$0.1263 - $1.5729 1700 In stock
Red
1-1/4 in
RRO1-1/4C
$0.1263 - $1.5729 32 In stock
Green
1-1/4 in
RRO1/2C
$0.0434 - $0.5411 4553 In stock
Black
1/2 in
RRO10A
$5.0711 - $14.291 363 In stock
Black
10 in
  • of 2
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1.0 in ; Compatible Thread Standard - IMC ; Inside Diameter - 33.1 mm | 1.305 in

RRO1D

Price Range
$1.0169 - $0.0814

Stock Levels
1437 In stock
Attributes
  • Inside Diameter
    1.305 in
  • Inside Height
    0.940 in
  • Color
    Orange
  • Compatible Nominal Pipe Sizes (All)
    1.0 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1-1/2 in ; Compatible Thread Standard - RMC ; Inside Diameter - 48 mm | 1.890 in

RRO1-1/2A

Price Range
$1.7627 - $0.141

Stock Levels
5493 In stock
Attributes
  • Inside Diameter
    1.890 in
  • Inside Height
    1.030 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    1-1/2 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 2-1/2 in ; Compatible Thread Standard - IMC ; Inside Diameter - 73.4 mm | 2.891 in

RRO2-1/2B

Price Range
$4.6023 - $0.3481

Stock Levels
3966 In stock
Attributes
  • Inside Diameter
    2.891 in
  • Inside Height
    1.580 in
  • Color
    Yellow
  • Compatible Nominal Pipe Sizes (All)
    2-1/2 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1-1/2 in ; Compatible Thread Standard - IMC ; Inside Diameter - 48 mm | 1.890 in

RRO1-1/2B

Price Range
$1.7627 - $0.141

Stock Levels
428 In stock
Attributes
  • Inside Diameter
    1.890 in
  • Inside Height
    1.030 in
  • Color
    Yellow
  • Compatible Nominal Pipe Sizes (All)
    1-1/2 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 3-1/2 in ; Compatible Thread Standard - IMC ; Inside Diameter - 101.9 mm | 4.010 in

RRO3-1/2B

Price Range
$8.8779 - $0.672

Stock Levels
5040 In stock
Attributes
  • Inside Diameter
    4.010 in
  • Inside Height
    1.750 in
  • Color
    Yellow
  • Compatible Nominal Pipe Sizes (All)
    3-1/2 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1.0 in ; Compatible Thread Standard - RMC ; Inside Diameter - 33.1 mm | 1.305 in

RRO1A

Price Range
$1.0169 - $0.0768

Stock Levels
97700 In stock
Attributes
  • Inside Diameter
    1.305 in
  • Inside Height
    0.940 in
  • Color
    Blue
  • Compatible Nominal Pipe Sizes (All)
    1.0 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 3/4 in ; Compatible Thread Standard - RMC ; Inside Diameter - 26.6 mm | 1.048 in

RRO3/4A

Price Range
$0.7566 - $0.0607

Stock Levels
In production
Attributes
  • Inside Diameter
    1.048 in
  • Inside Height
    0.747 in
  • Color
    Red
  • Compatible Nominal Pipe Sizes (All)
    3/4 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 2-1/2 in ; Compatible Thread Standard - RMC ; Inside Diameter - 73.4 mm | 2.891 in

RRO2-1/2A

Price Range
$4.6023 - $0.3481

Stock Levels
58459 In stock
Attributes
  • Inside Diameter
    2.891 in
  • Inside Height
    1.580 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    2-1/2 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 2.0 in ; Compatible Thread Standard - IMC ; Inside Diameter - 60.3 mm | 2.375 in

RRO2E

Price Range
$0.6848 - $0.1763

Stock Levels
100 In stock
Attributes
  • Inside Diameter
    2.375 in
  • Inside Height
    1.157 in
  • Color
    Orange
  • Compatible Nominal Pipe Sizes (All)
    2.0 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 3-1/2 in ; Compatible Thread Standard - RMC ; Inside Diameter - 101.9 mm | 4.010 in

RRO3-1/2A

Price Range
$8.7165 - $0.6598

Stock Levels
3348 In stock
Attributes
  • Inside Diameter
    4.010 in
  • Inside Height
    1.750 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    3-1/2 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 4.0 in ; Compatible Thread Standard - IMC ; Inside Diameter - 115.1 mm | 4.530 in

RRO4C

Price Range
$10.0569 - $0.7586

Stock Levels
7131 In stock
Attributes
  • Inside Diameter
    4.530 in
  • Inside Height
    1.870 in
  • Color
    Orange
  • Compatible Nominal Pipe Sizes (All)
    4.0 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 3.0 in ; Compatible Thread Standard - IMC ; Inside Diameter - 88 mm | 3.465 in

RRO3C

Price Range
$6.2358 - $0.4717

Stock Levels
9514 In stock
Attributes
  • Inside Diameter
    3.465 in
  • Inside Height
    1.750 in
  • Color
    Orange
  • Compatible Nominal Pipe Sizes (All)
    3.0 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 4.0 in ; Compatible Thread Standard - RMC ; Inside Diameter - 115.1 mm | 4.530 in

RRO4A

Price Range
$9.2798 - $0.70

Stock Levels
4390 In stock
Attributes
  • Inside Diameter
    4.530 in
  • Inside Height
    1.870 in
  • Color
    Blue
  • Compatible Nominal Pipe Sizes (All)
    4.0 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 5.0 in ; Compatible Thread Standard - RMC ; Inside Diameter - 140.5 mm | 5.531 in

RRO5A

Price Range
$21.3145 - $1.60

Stock Levels
139 In stock
Attributes
  • Inside Diameter
    5.531 in
  • Inside Height
    1.870 in
  • Color
    Blue
  • Compatible Nominal Pipe Sizes (All)
    5.0 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 6.0 in ; Compatible Thread Standard - RMC ; Inside Diameter - 167.3 mm | 6.586 in

RRO6A

Price Range
$25.0994 - $1.9035

Stock Levels
In production
Attributes
  • Inside Diameter
    6.586 in
  • Inside Height
    2.180 in
  • Color
    Blue
  • Compatible Nominal Pipe Sizes (All)
    6.0 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 8 in ; Compatible Thread Standard - RMC ; Inside Diameter - 219.1 mm | 8.625 in

RRO8A

Price Range
$36.0937 - $2.7389

Stock Levels
80 In stock
Attributes
  • Inside Diameter
    8.625 in
  • Inside Height
    2.210 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    8 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1-1/4 in ; Compatible Thread Standard - RMC ; Inside Diameter - 42 mm | 1.653 in

RRO1-1/4A

Price Range
$1.5729 - $0.1263

Stock Levels
1700 In stock
Attributes
  • Inside Diameter
    1.653 in
  • Inside Height
    0.980 in
  • Color
    Red
  • Compatible Nominal Pipe Sizes (All)
    1-1/4 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1-1/4 in ; Compatible Thread Standard - IMC ; Inside Diameter - 42 mm | 1.653 in

RRO1-1/4C

Price Range
$1.5729 - $0.1263

Stock Levels
32 In stock
Attributes
  • Inside Diameter
    1.653 in
  • Inside Height
    0.980 in
  • Color
    Green
  • Compatible Nominal Pipe Sizes (All)
    1-1/4 in
  • Compatible Thread Standard
    IMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 1/2 in ; Compatible Thread Standard - RMC ; Inside Diameter - 21.2 mm | 0.835 in

RRO1/2C

Price Range
$0.5411 - $0.0434

Stock Levels
4553 In stock
Attributes
  • Inside Diameter
    0.835 in
  • Inside Height
    0.750 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    1/2 in
  • Compatible Thread Standard
    RMC
Open-End Pipe Cap - Compatible Nominal Pipe Sizes (All) - 10 in ; Compatible Thread Standard - RMC ; Inside Diameter - 275.6 mm | 10.850 in

RRO10A

Price Range
$14.291 - $5.0711

Stock Levels
363 In stock
Attributes
  • Inside Diameter
    10.850 in
  • Inside Height
    2.410 in
  • Color
    Black
  • Compatible Nominal Pipe Sizes (All)
    10 in
  • Compatible Thread Standard
    RMC