Flo Span Expandable Repair Coupling Features:
• Double EPDM o-ring seal gives more protection from posible leakage due to deflection of piston in the extended position.
• EPDM o-ring seal also protects against contamination on the cylinder wall.
• Solvent cement trap located in cap to capture excess solvent cement.
• Made from PVC type I grade I material meeting ASTM D-1784
• 118 Series does not have union end.