Rain Bird EFBIGT-1S drip irrigation Easy Fit "Biggie Tee" for use with riser mounted micro watering devices. An easy fit compression tee (1/2" x 1/2" x 1/2") with built-in stake for use with threaded riser-mounted micro watering devices in drip irrigation systems. From the Manufacturer: Rain Birds Easy Fit "Biggie Tee" provides fast in-line connection and staking of riser-mounted micro sprays, bubblers and misters in drip irrigation systems. The Easy Fit system involves simple push-together hand assembly and fits all brands of 1/2" to 5/8" drip tubing. A popular choice of irrigation contractors, Easy Fit Compression Fittings reduce time and fatigue in any drip irrigation system installation where 1/2" tubing is used. Quick, push-together assembly speeds installation, requiring 50% less force than barbed fittings. The Easy Fit "Biggie Tee" extends the Easy Fit advantage for use in systems with riser mounted micro-watering devices. Combining two compression ends, a top female threaded outlet for risers and a heavy duty stake, the Biggie Tee allows quick placement and staking of riser mounted devices throughout the planting bed. Heavy duty built-in stake holds tubing in place and helps keep risers positioned properly for coverage. The finished installation is durable, leak-resistant and stays in place season after season. The tubing and tee can also be covered with mulch for an attractive appearance. Universal compression ends can be used with all brands of " drip tubing (16 mm - 17 mm O.D.) Use with Rain Bird 12" PolyFlex riser model MPTRISER12 to attach threaded selection of: micro sprays, micro bubblers, micro umbrella bubblers, and misters. Constructed of UV-resistant durable ABS materials. Operating pressure: 0 to 60 PSI. Rain Bird The Intelligent Use of Water