O PN-25 equivale a série de tubo S 2,5. TU202503 Tubo PN-25 Ø 20 mm – 3 mts TU252503 Tubo PN-25 Ø 25 mm – 3 mts TU322503 Tubo PN-25 Ø 32 mm – 3 mts TU402503 Tubo PN-25 Ø 40 mm – 3 mts TU502503 Tubo PN-25 Ø 50 mm – 3 mts TU632503 Tubo PN-25 Ø 63 mm – 3 mts TU752503 Tubo PN-25 Ø 75 mm – 3 mts TU902503 Tubo PN-25 Ø 90 mm – 3 mts TU1102503 Tubo PN-25 Ø 110 mm – 3 mts
