HDPE Compression Fittings 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm. 1. Equal tee 2. Coupling 3. 90°Elbow 4. Reducing tee 5. Reducing Coupling 6. Reducing Elbow 7. Femal Thread Adaptor 8. Male Thread Adaptor 9. Female Thread Tee