number in each package

coupler+2rings

ring price

coupler price $

code

type

12

0.4

3

2-200

coupler size 200

9

0.9

3.9

2-250

coupler size 250

4

3

8

2-315

coupler size 315

4

3.2

9.6

2-340

coupler size 340

4

3.8

11

2-400

coupler size 400

4.8

15.6

2-500

coupler size 500

12

39.5

2-600

coupler size 600