Adjustable Push-Fit Drip Emitters 30 Pack

30-pack of irrigation emitters engineered exclusively for 1/4" outer diameter drip tubing (OD ≤ 0.27 inch). Each unit installs in one motion: align, push, click—achieving hydraulic seal without deformation or thermal assistance. Height: 28 mm; base diameter: 12 mm; weight per piece: ~4.2 g. Flow regulation occurs via indexed rotation of the upper collar—offering discrete settings approximating 2 ft, 5 ft, and 10 ft spray radius, with infinite positions between. Max output: 25 GPH at 25 PSI; shut-off is absolute (0 GPH). Body material: UV-inhibited polypropylene; sealing interface: dual EPDM O-rings; structural pin: AISI 304 stainless steel. Built for UK/EU seasonal variability: tested across 5 winter cycles (-3°C freeze/thaw) and 3 summer peaks (38°C ambient), showing no housing brittleness or seal extrusion. The 6-inch vertical stream height ensures soil contact even with 10 cm mulch layers—standard practice in RHS-recommended no-dig beds. Intended for use with timer-controlled, battery-operated, or manually valved drip circuits found in domestic greenhouses, allotments, and rooftop gardens. Backward-compatible with legacy 1/4" tubing infrastructure—no retrofitting needed. Verified fit with Gardena Micro-Drip-System, Claber Timer Kits, and generic EU-sourced spaghetti tubing meeting ISO 5600-1 dimensional specs.