What is the cost of frp pipe?

Fiberglass Piping and Fitting Co. has price lists on the internet.

Examples of 20 ft. lengths:

3 inch $280.00

4 inch $357.2

6 inch $436.60

8 inch $567.20

10 inch $745.40

These are low. You can probably pay a lot more.

John K. Nabors