Rain Bird T22-250S Drip Irrigation 1/4″ Blank Distribution Tubing, 250′ Roll, Black. Versatile 1/4″ blank distribution tubing may be used as the main line in a small Drip irrigation system or to branch off from 1/2″ Drip tubing to individual micro- watering devices and plants. Rain Bird’s 1/4″ distribution tubing is the strongest and most flexible tubing available; constructed of UV-resistant polyethylene resin materials giving it the flexibility of vinyl with the hold of poly. Unique Micro-Porous design creates an ultra-tight connection; tubing expands over fittings then shrinks making it almost impossible to remove without cutting. Textured finish improves handling to make connections faster and easier. Compact coiling method allows tubing to remain coiled as its extracted; making it easy to use, store and eliminates waste. Tubing is easy to unroll and stake in gardens, flower beds, ground cover or other landscaped areas. Industry leading flexibility allows tighter turns with fewer elbows for fast, easy installation. Perfect for small, narrow and tight planting areas, as well as areas with tight curves or many switchbacks. Professional-grade for unmatched resistance to chemicals, algae growth and UV damage. Designed for underground or above-ground installation. Rain Bird 1/4″ Tubing is commonly used with Spot Watering Emitters, Micro-Bubblers, Misters and Sprays; also to run water to 1/4” Emitter Tubing (from 1/2” distribution or emitter tubing and a wide variety of Drip manifolds).70 psi pressure rating exceeds competitor’s specifications. Compatible with most brands of 1/4” barbed Drip fittings and micro-watering devices. High-quality Rain Bird fittings (sold separately) are available in coupling, elbow, tee, plug and valve models; plus stakes in plastic and galvanized versions. Specifications: black; 0.25″ outside diameter, inside diameter 0.17″, wall thickness .04″. Operating pressure: 0 to 70 psi. Also available (sold separately) in: 50′ (T22-50S) and 100′ (T22-100S) rolls. Rain Bird “The Intelligent Use of Water”Rugged, flexible tubing that’s easy to unroll and stake in garden, flower bed, ground cover or other landscaped areas Use as the main line in a small Drip irrigation system or to branch off from larger 1/2″ Drip tubing to micro-watering devices Textured finish improves handling; making connections faster and easier Extra flexibility for kink-free installation, unmatched resistance to chemicals, algae growth and UV damage Unique Micro-Porous design creates an ultra-tight connection Compatible with most brands of 1/4″ Barbed Fittings, Spot Watering Emitters, Micro-Bubblers, Misters and Sprays Designed for underground or above-ground installation Tubing specifications: outside diameter 0.25″, inside diameter 0.17″, wall thickness .04″ Operating pressure: 0 to 70 psi.