Polyethylene Barbed Tee Used to connect three poly tube lines, the barbed tee offers excellent flow dynamics improving performance and ensuring an uninterrupted flow. The 4mm tees are used are ideal for drip and spray systems and allow you to join 4mm poly tube to 13mm poly tube, Drip Eze or a Water Weeper. Features Secure 13mm and larger fittings with Locking Clamps or Loc-Sure Clamps UV treated Specifications Documentation Toro Polyethylene Tube Fittings DIY Drip Irrigation Installation Guide DIY Pop-Up Irrigation Installation Guide DIY Simple Drip Irrigation Guide Videos Compatible with Toro Polyethylene Ratchet Clamp Reviews