Product Information:Rain Bird RWS Series Root Watering enables vital water, oxygen, and nutrients to bypass compacted soil and directly reach tree and shrub root systems. Its patented basket weave canister allows ground installation to a depth of 36". This system is intended for use with water dispensing devices, such as a bubbler head or an emitter. Features:#149; Root Watering w/0.25 gpm (1,2 l/m) bubbler on riser, 4 (10,2 cm) grate, versatile swing assembly w/1/2 (15/21) M NPT inlet#149; Promotes health in trees and shrubs, contributing to the success of your landscape designs#149; Easy to specify: one model number instead of a host of parts#149; Compatible with drip emitters or can be purchased with preinstalled bubbler and check valve options#149; Helps prevent damage to hardscapes from tree roots#149; Installed below grade for pleasing aesthetics#149; Selfcontained and factory assembled units for assured reliability#149; Variety of models available to accommodate design flexibility:#149; 4 retaining cap and vandal resistant locking grate tops a 36 semirigid mesh tube#149; Factory installed swing assemblies (excluding RWSBGX) with a 1401 (0.25 gpm) bubbler on a fixed riser makes connecting to lateral lines easy#149; Innovative design with a locking grate protects system from vandalism and the optional sand sock is ideal for use in sandy soil Specifications:#149; Model: RWSB1401#149; Product number: A22420