Home / Pipes and Fittings / BUTELINE / BUTELINE PB-1 Straight Inline Coupling BUTELINE PB-1 Straight Inline Coupling Size Choose an option18X18mm S10222X22mm S10418X18mm S10222X22mm S104Clear Related products BUTELINE PB-1 Equal Tee BUTELINE PE Clamp Tool BUTELINE PB-1 Reducing Tee BUTELINE PB-1 Male Tee BUTELINE PE Reducing Tee BUTELINE PE Female Swivel Elbow