Pup Joint is a pipe that can be cut into different lengths such as 2ft, 4ft, 6ft, 8ft etc. It's always used to connect 2 casing pipes or tubings to reach the exact required length. 

Pup Joints can be classified into two types. One comes with male threads at both ends. The other type comes with male and female threads at each end. Or we can call these 2 types as: Pin x Pin & Pin x Box. 

Specifications:

1 Standard: API 5CT/5B

2 Steel: J55, K55, N80, L80, P110

3 OD: 60.3-508MM 

4 Threads: LTC, BTC, STC, EUE, NUE

5 Lengths: 2, 3, 4, 6, 8, 10, 12ft ( other lengths can be supplied upon the request)

6 Packing: in bundles , or in boxes