Specification | Installation Rain Bird XFD 16 mm Brown Dripline (12" Emitter Spacing) (.92 GPH) (500') 500 feet 16 mm Tubing (.536 ID x .634 OD) 12" Emitter Spacing (.9 GPH) Brown Drip Line On Surface Drip Line Features & Benefits The most flexible, pressure-compensating inline emitter tubing available to irrigate ground cover, dense plantings, hedge rows and more. Extra flexible tubing for fast, easy installation Dual-layered tubing (brown over black or purple over black) provides unmatched resistance to chemicals, UV damage and algae growth. Patent pending emitter design pro vides for increased reliability Longer lateral runs than competition Unique material offers significantly greater flexibility, allowing tighter turns with fewer elbows for easier installation Choice of flow rates, spacing and coil lengths provides design flexibility for a variety of non-turfgrass applications Accepts Rain Bird Easy Fit Compression Fittings XF Dripline Insert Fittings and 17mm insert fittings Use an Air/Vaccum Relief Valve Kit when installation is below soil Product Details Outside diameter : 0.634" (16.1 mm) Inside diameter : 0.536" (13.6 mm) Wall thickness: 0.049" (1.2 mm) Spacing: 12" or 18" Lengths: 100', 250', and 500' coils Use with XF Dripline Insert Fittings (see page 130), Rain Bird Easy Fit Compression Fittings and 17mm Insert Fittings Operating Range Pressure: 8.5 to 60 psi (0.58 to 4.1 bar) Flow rates: 0.6 gph and 0.9 gph (2.3 l/h and 3.5 l/h) Temperature: Water up to 100 degrees F (37.8C); Ambient up to 125 degrees F (51.7C) Required filtration: 120 mesh