Most common sizes used in the utility construction industry listed below.
10 Gauge (minimum) is recommended for direct bury applications.
FMP Internal Rotator Couplings each come with stainless steel fasteners. Rotator Couplers come standard in 10 Gauge Galvanized wall thicknesses. 10” and larger come standard in 3 Gauge. Larger sizes up to 30” available upon request.