STD-1000

Standard

1000

5.6

STD-1500

Standard

1500

8.0

STD-2000

Standard

2000

10.4

STD-2500

Standard

2500

12.8

STD-3000

Standard

3000

15.2

STD-3500

Standard

3500

17.5

STD-4000

Standard

4000

20.0

STDC-500

Standard with coupling

500

3.90

STDC-1000

Standard with coupling

1000

5.90

STDC-1500

Standard with coupling

1500

8.3

STDC-2000

Standard with coupling

2000

10.7

STDC-2500

Standard with coupling

2500

13.1

STDC-3000

Standard with coupling

3000

15.3

STDC-3500

Standard with coupling

3500

17.8

STDC-4000

Standard with coupling

4000

20.3