By far the most popular connection type is the standard slip coupling connection. Standard Slip Coupling Connectors are available in sizes ranging from 3/4" on up with socket x socket connections for gluing into PVC pipe (Sizes above 2.5" are special order items-Call for pricing).  Standard Coupling Connectors are manufactured from Schedule 40 PVC with 1/4" nylon barbed tubing connections. Standard Coupling Connections are used to connect the EZ-FLO system to the irrigation flow line before or after the valve with the 1/4" flexible tubing provided with every EZ-FLO system.  These connectors are principally used in new installations or in retrofits where there is adequate room to flex the irrigation pipe.  Not recommended for EZ005 and larger models.