Product Information:The XeriPop microspray makes it easy to integrate a durable microspray into a lowvolume drip irrigation design. The XeriPop is also ideal for applications that require flexibility and ease of installation. They are easy to install and reconfigure making them ideal for seasonal flower and planting beds. Features:#149; The Rain Bird XeriPop operates at 20 to 50 psi base pressure when water is supplied by 1/4" distribution tubing#149; For optimum performance use 40 psi or 50 psi pressure regulator#149; Selfflushing, pressureactivated wiper seal assures reliable popup and popdown#149; Barb inlet accepts 1/4" distribution tubing#149; Ribbed/flanged design of inlet assembly stabilizes the Rain Bird XeriPop at installation and protects the 1/4" barb from possible damage#149; A durable, plastic snapcollar secures 1/4" distribution tubing to the outside of the Rain Bird XeriPop case#149; All plastic parts in the XeriPop are impact resistant#149; All external parts are UV resistant Specifications:#149; Model: XP400X#149; Product number: X54400#149; Length: 4"