Amazon.com : DIG 25-Pack Drip Irrigation Compression Coupling .700 O.D. for Use with Drip Irrigation Tubing, Hydroponics, Gardening, Watering Poly tubing with .680 OD.700 OD and .704 OD : Patio, Lawn & Garden
Rain Bird 1/2 in. - 0.710 in. OD Compression Coupling CC710X - The Home Depot
Source 20 25 32 40 50mm Irrigation HDPE Compression Fittings Straight Tee Elbow Coupling Connector for Water Supply on m.alibaba.com
Amazon.com : DIG 25-Pack Drip Irrigation Compression Coupling .700 O.D. for Use with Drip Irrigation Tubing, Hydroponics, Gardening, Watering Poly tubing with .680 OD.700 OD and .704 OD : Patio, Lawn & Garden
Polyethylene Compression Coupling | NDS – Looks Like Rain
Easy Fit Compression Fitting System - Coupling
Rain Bird Easy Fit Compression Fittings | Shoemaker Irrigation Supply