{"product_id":"rain-bird-a22470-root-watering-system-18-in-tube","title":"Rain Bird a22470 Root Watering System 18 in Tube","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe RAIN BIRD a22470 is a mini root watering system (RWS-M) designed to deliver water, oxygen, and nutrients directly to tree and shrub root zones, bypassing compacted soil that blocks surface irrigation. It includes an 18-inch tube, a 0.25 GPM bubbler check valve, and a 4-inch grate. The patented basket weave canister installs to a depth of 18 inches, placing moisture exactly where root systems can absorb it. This unit is intended for use with water-dispensing devices such as bubbler heads or drip emitters. Licensed irrigation technicians and landscape contractors are the primary installers.\u003c\/p\u003e\u003cp\u003eThe a22470 is suited for residential and commercial landscape applications where deep root watering is needed for trees and shrubs. It is particularly useful in installations with compacted, clay-heavy, or disturbed soils where surface water runoff or shallow penetration limits effective irrigation. The flush-mount 4-inch grate keeps the installation low-profile and mow-safe, making it appropriate for turf areas and manicured landscapes. It supports deep root development that reduces long-term water demand and strengthens plant investment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e18-inch tube depth delivers water directly to the root zone of trees and shrubs\u003c\/li\u003e\n\u003cli\u003e0.25 GPM bubbler check valve controls flow and prevents backflow\u003c\/li\u003e\n\u003cli\u003ePatented basket weave canister allows water, oxygen, and nutrients to disperse into surrounding soil\u003c\/li\u003e\n\u003cli\u003e4-inch grate provides a flush, mow-safe surface finish\u003c\/li\u003e\n\u003cli\u003eCompatible with standard bubbler heads and drip emitters\u003c\/li\u003e\n\u003cli\u003ePromotes deep root growth to improve drought tolerance and landscape longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with bubbler heads and drip emitters in residential and commercial irrigation systems requiring subsurface root zone watering for trees and shrubs.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed irrigation contractors or landscape professionals. Shut off the irrigation system and relieve line pressure before connecting to the supply line. Excavate to the required depth of 18 inches before setting the canister to ensure proper placement in the root zone. Follow local irrigation codes and manufacturer guidelines for emitter flow rate compatibility.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate\u003c\/strong\u003e: 0.25 GPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrate Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Depth\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type\u003c\/strong\u003e: Bubbler Check Valve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RAIN BIRD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: a22470\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RAIN BIRD","offers":[{"title":"Default Title","offer_id":51619771973938,"sku":"A22470","price":73.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a3199e4eae99dee3d2e3212421db3b8e.jpg?v=1787334108","url":"https:\/\/voomisupply.com\/products\/rain-bird-a22470-root-watering-system-18-in-tube","provider":"Voomi Supply","version":"1.0","type":"link"}