Micro sprinklers

334 products

Misting System - 15m Arm + 21 Brass Nozzles + 1 Brass Adapter (1.9cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (1/5)

Misting System - 15m Arm + 21 Brass Nozzles + 1 Brass Adapter (1.9cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (2/5)

Misting System - 15m Arm + 21 Brass Nozzles + 1 Brass Adapter (1.9cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (3/5)

Misting System - 15m Arm + 21 Brass Nozzles + 1 Brass Adapter (1.9cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park

~~£74.90~~

Free shipping

50 plastic spray nozzles for micro-irrigation systems in greenhouses and gardens – For cooling, humidifying and drip irrigation, standard 4 mm connection, constant flow (1/4)

50 plastic spray nozzles for micro-irrigation systems in greenhouses and gardens – For cooling, humidifying and drip irrigation, standard 4 mm connection, constant flow

Free shipping

50 plastic spray nozzles for micro-irrigation systems in greenhouses and gardens – For cooling, humidifying and drip irrigation, standard 4 mm connection, constant flow

~~£29.59~~

Free shipping

Sprinkler nozzles, portable irrigation systems, automatic sprinkler systems, 10-meter garden hose (1/5)

Sprinkler nozzles, portable irrigation systems, automatic sprinkler systems, 10-meter garden hose (2/5)

Sprinkler nozzles, portable irrigation systems, automatic sprinkler systems, 10-meter garden hose (3/5)

Sprinkler nozzles, portable irrigation systems, automatic sprinkler systems, 10-meter garden hose

Free shipping

Pack of 100 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (1/5)

Pack of 100 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (2/5)

Pack of 100 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (3/5)

Pack of 100 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (4/5)

Pack of 100 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm

Free shipping

A 10-meter terrace misting system, suitable for outdoor cooling in gardens, patios, greenhouses, parties, and farms. (1/5)

A 10-meter terrace misting system, suitable for outdoor cooling in gardens, patios, greenhouses, parties, and farms. (2/5)

A 10-meter terrace misting system, suitable for outdoor cooling in gardens, patios, greenhouses, parties, and farms. (3/5)

A 10-meter terrace misting system, suitable for outdoor cooling in gardens, patios, greenhouses, parties, and farms. (4/5)

A 10-meter terrace misting system, suitable for outdoor cooling in gardens, patios, greenhouses, parties, and farms.

Free shipping

Set of 20 adjustable micro-drip irrigation sprinklers for garden watering systems with 4/7 mm hoses - AquaForge (1/5)

Set of 20 adjustable micro-drip irrigation sprinklers for garden watering systems with 4/7 mm hoses - AquaForge (2/5)

Set of 20 adjustable micro-drip irrigation sprinklers for garden watering systems with 4/7 mm hoses - AquaForge (3/5)

Set of 20 adjustable micro-drip irrigation sprinklers for garden watering systems with 4/7 mm hoses - AquaForge

Set of 5 rotary sprinklers with anti-drip system and hanging diffuser for garden irrigation (micro-drip irrigation fittings) - AquaForge

150 Stück Tropfbewässerungs-Emitter, Mikrosprinklerköpfe, Nebelbewässerung, Refraktionssprühdüsen für Pflanzen (90/180/360 Grad) (1/5)

150 Stück Tropfbewässerungs-Emitter, Mikrosprinklerköpfe, Nebelbewässerung, Refraktionssprühdüsen für Pflanzen (90/180/360 Grad) (2/5)

150 Stück Tropfbewässerungs-Emitter, Mikrosprinklerköpfe, Nebelbewässerung, Refraktionssprühdüsen für Pflanzen (90/180/360 Grad) (3/5)

150 Stück Tropfbewässerungs-Emitter, Mikrosprinklerköpfe, Nebelbewässerung, Refraktionssprühdüsen für Pflanzen (90/180/360 Grad)

~~£30.09~~

Free shipping

Terrace spray system, 15 m long spray system with 15 nozzles, garden cooling sprayer with robust hose and removable nozzles for garden, terrace, trampoline and greenhouse (1/5)

Terrace spray system, 15 m long spray system with 15 nozzles, garden cooling sprayer with robust hose and removable nozzles for garden, terrace, trampoline and greenhouse

~~£64.92~~

Free shipping

Misting System - 15 m - Ramp + 21 Brass Misting Nozzles + Brass Adapter (1.9 cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (1/5)

Misting System - 15 m - Ramp + 21 Brass Misting Nozzles + Brass Adapter (1.9 cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (2/5)

Misting System - 15 m - Ramp + 21 Brass Misting Nozzles + Brass Adapter (1.9 cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park (3/5)

Misting System - 15 m - Ramp + 21 Brass Misting Nozzles + Brass Adapter (1.9 cm) - Outdoor Misting System for Patio, Garden, Greenhouse, Park

~~£50.99~~

Free shipping

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving (1/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving (2/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving (3/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving

~~£30.23~~

Free shipping

Set of 5 anti-drip rotary sprinklers with suspended spray system for garden irrigation (micro-drip irrigation). - AquaForge (1/5)

Set of 5 anti-drip rotary sprinklers with suspended spray system for garden irrigation (micro-drip irrigation). - AquaForge (2/5)

Set of 5 anti-drip rotary sprinklers with suspended spray system for garden irrigation (micro-drip irrigation). - AquaForge (3/5)

Set of 5 anti-drip rotary sprinklers with suspended spray system for garden irrigation (micro-drip irrigation). - AquaForge

Terrace spray system, 15 m long spray system with 15 nozzles, garden cooling sprayer with robust hose and removable nozzles for garden, terrace, trampoline and greenhouse

~~£61.64~~

24-piece automatic irrigation system, automatic plant sprinkler with valve, adjustable watering can, watering can (1/5)

24-piece automatic irrigation system, automatic plant sprinkler with valve, adjustable watering can, watering can (2/5)

24-piece automatic irrigation system, automatic plant sprinkler with valve, adjustable watering can, watering can (3/5)

24-piece automatic irrigation system, automatic plant sprinkler with valve, adjustable watering can, watering can

Free shipping

G3/4 male thread irrigation nozzle, black plastic, for agricultural greenhouses, 6 pieces (1/5)

G3/4 male thread irrigation nozzle, black plastic, for agricultural greenhouses, 6 pieces (2/5)

G3/4 male thread irrigation nozzle, black plastic, for agricultural greenhouses, 6 pieces (3/5)

G3/4 male thread irrigation nozzle, black plastic, for agricultural greenhouses, 6 pieces

Free shipping

Adjustable drip irrigation nozzle for garden plants, 360-degree drip sprayer, cooling/irrigation device (pack of 20) (1/5)

Adjustable drip irrigation nozzle for garden plants, 360-degree drip sprayer, cooling/irrigation device (pack of 20) (2/5)

Adjustable drip irrigation nozzle for garden plants, 360-degree drip sprayer, cooling/irrigation device (pack of 20) (3/5)

Adjustable drip irrigation nozzle for garden plants, 360-degree drip sprayer, cooling/irrigation device (pack of 20)

~~£47.10~~

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--BIEMMEDUE (1/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--BIEMMEDUE (2/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--BIEMMEDUE (3/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--BIEMMEDUE

~~£46.43~~

Free shipping

100 Stück Tropfbewässerungs-Tropfer, Sprinklerdüsen, Garten-Emitter, 360° verstellbare automatische Tropfbewässerung für Pflanzen, Gewächshäuser, Rasenflächen, Heimwerkerprojekte (1/5)

100 Stück Tropfbewässerungs-Tropfer, Sprinklerdüsen, Garten-Emitter, 360° verstellbare automatische Tropfbewässerung für Pflanzen, Gewächshäuser, Rasenflächen, Heimwerkerprojekte

~~£31.28~~

Free shipping

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--DTEKGAZ (1/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--DTEKGAZ (2/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--DTEKGAZ (3/5)

Pack of 20 brass spray nozzles – 0.3 mm opening – For cooling systems – Effective water saving--DTEKGAZ

~~£36.08~~

Free shipping

G3/4 male thread irrigation nozzle, black plastic, for agricultural greenhouses, 6 pieces

Free shipping

Wasser Baum 360 Grad verstellbarer Sprinkler für (1/5)

Wasser Baum 360 Grad verstellbarer Sprinkler für (2/5)

Wasser Baum 360 Grad verstellbarer Sprinkler für (3/5)

Wasser Baum 360 Grad verstellbarer Sprinkler für

~~£33.84~~

Free shipping

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces (1/5)

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces (2/5)

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces (3/5)

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces

Free shipping

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces

Free shipping

20-Piece Irrigation Sprinkler Set: 360° Rotating Micro-Sprinkler, Type G for Garden Plants, Irrigation Mist Sprinkler (1/5)

20-Piece Irrigation Sprinkler Set: 360° Rotating Micro-Sprinkler, Type G for Garden Plants, Irrigation Mist Sprinkler (2/5)

20-Piece Irrigation Sprinkler Set: 360° Rotating Micro-Sprinkler, Type G for Garden Plants, Irrigation Mist Sprinkler (3/5)

20-Piece Irrigation Sprinkler Set: 360° Rotating Micro-Sprinkler, Type G for Garden Plants, Irrigation Mist Sprinkler

~~£41.98~~

G1/2 inch male threaded water sprinkler, automatic rotating misting nozzle for garden and yard irrigation system, 15 pieces

Free shipping

20 m 8 l Tropfbewässerungssystem – 4-Wege-Mikro-Tropfbewässerungsset für Garten, Gewächshaus und Pflanzen (1/5)

20 m 8 l Tropfbewässerungssystem – 4-Wege-Mikro-Tropfbewässerungsset für Garten, Gewächshaus und Pflanzen (2/5)

20 m 8 l Tropfbewässerungssystem – 4-Wege-Mikro-Tropfbewässerungsset für Garten, Gewächshaus und Pflanzen (3/5)

20 m 8 l Tropfbewässerungssystem – 4-Wege-Mikro-Tropfbewässerungsset für Garten, Gewächshaus und Pflanzen

~~£39.77~~

Free shipping

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--DTEKGAZ (1/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--DTEKGAZ (2/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--DTEKGAZ

~~£45.69~~

Free shipping

20-Meter-Terrassen-Sprühsystem mit 20 Düsen, UV-beständigem PE-Schlauch, senkt die Temperatur um 20 °C, einfache Installation – 20 Düsen (1/5)

20-Meter-Terrassen-Sprühsystem mit 20 Düsen, UV-beständigem PE-Schlauch, senkt die Temperatur um 20 °C, einfache Installation – 20 Düsen (2/5)

20-Meter-Terrassen-Sprühsystem mit 20 Düsen, UV-beständigem PE-Schlauch, senkt die Temperatur um 20 °C, einfache Installation – 20 Düsen (3/5)

20-Meter-Terrassen-Sprühsystem mit 20 Düsen, UV-beständigem PE-Schlauch, senkt die Temperatur um 20 °C, einfache Installation – 20 Düsen

~~£49.88~~

Free shipping

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection (1/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection (2/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection

~~£39.84~~

Free shipping

Gartenbett Wasser Sprinkler Baumwurzeldrator Einstellbares (1/5)

Gartenbett Wasser Sprinkler Baumwurzeldrator Einstellbares (2/5)

Gartenbett Wasser Sprinkler Baumwurzeldrator Einstellbares (3/5)

Gartenbett Wasser Sprinkler Baumwurzeldrator Einstellbares

~~£38.60~~

Free shipping

Automatic drip irrigation system for indoor plants, garden siphon sprinkler, white, 8-piece set (1/5)

Automatic drip irrigation system for indoor plants, garden siphon sprinkler, white, 8-piece set (2/5)

Automatic drip irrigation system for indoor plants, garden siphon sprinkler, white, 8-piece set (3/5)

Automatic drip irrigation system for indoor plants, garden siphon sprinkler, white, 8-piece set

~~£55.86~~

Pack of 40 8-hole garden sprinklers, drip irrigation system, 4/7" hose, red, 13 cm (1/5)

Pack of 40 8-hole garden sprinklers, drip irrigation system, 4/7" hose, red, 13 cm (2/5)

Pack of 40 8-hole garden sprinklers, drip irrigation system, 4/7" hose, red, 13 cm (3/5)

Pack of 40 8-hole garden sprinklers, drip irrigation system, 4/7" hose, red, 13 cm

~~£53.98~~

Pack of 40 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (1/5)

Pack of 40 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (2/5)

Pack of 40 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm (3/5)

Pack of 40 8-hole garden soil sprinklers, drip irrigation system, 4/7" hose, green, 13 cm

~~£53.98~~

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--BIEMMEDUE (1/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--BIEMMEDUE (2/4)

10 brass spray nozzles 0.2 mm – for low-pressure irrigation and misting systems in outdoor areas, tap connection--BIEMMEDUE

~~£56.04~~

Free shipping

Mister of Patio, 15M 15Nozzle System of Misting Mister Garden Cooling with Hose Durable and Nozzle Removable for Garden Patio Trampoline Tighten (1/4)

Mister of Patio, 15M 15Nozzle System of Misting Mister Garden Cooling with Hose Durable and Nozzle Removable for Garden Patio Trampoline Tighten

~~£45.70~~

Free shipping

Lntyq Set of 100 Micro Spraying to Flow Adjustable for Irrigation of Garden, heads of Mister with Kit of Misting of irrigation Drop to Drop to Drop 3 T (Orange) (1/4)

Lntyq Set of 100 Micro Spraying to Flow Adjustable for Irrigation of Garden, heads of Mister with Kit of Misting of irrigation Drop to Drop to Drop 3 T (Orange)

~~£62.43~~

Free shipping

30Pcs Irrigation Drop to Drop Kit,Kit of Irrigation Drop,Micro Irrigation Drop to Drop Garden System,Sprinklers automatic Plants Irrigation System for Garden Home Indoor Outdoor (1/5)

30Pcs Irrigation Drop to Drop Kit,Kit of Irrigation Drop,Micro Irrigation Drop to Drop Garden System,Sprinklers automatic Plants Irrigation System for Garden Home Indoor Outdoor

~~£40.07~~

Free shipping

Lntyq Irrigation Drop has Drop Bottle, 4 Pieces Watering Drop to Drop in Ceramic Sprinkler Automatic Plants System of Irrigation Automatic for Garden Home Indoor Outdoor (1/5)

Lntyq Irrigation Drop has Drop Bottle, 4 Pieces Watering Drop to Drop in Ceramic Sprinkler Automatic Plants System of Irrigation Automatic for Garden Home Indoor Outdoor

~~£43.24~~

Free shipping

Srroseur Cap Of Bottle 8PCS Watering Bottle Watering Apple Plastic Watering Sprinkler(Green) (1/5)

Srroseur Cap Of Bottle 8PCS Watering Bottle Watering Apple Plastic Watering Sprinkler(Green) (2/5)

Srroseur Cap Of Bottle 8PCS Watering Bottle Watering Apple Plastic Watering Sprinkler(Green) (3/5)

Srroseur Cap Of Bottle 8PCS Watering Bottle Watering Apple Plastic Watering Sprinkler(Green) (4/5)

Srroseur Cap Of Bottle 8PCS Watering Bottle Watering Apple Plastic Watering Sprinkler(Green)

~~£28.94~~

Free shipping

System of irrigation System of Mister Outdoor,With 10 Nozzle for Garden Patio Patio Diy, 10pcs ,Nozzle of Spraying in Brass for Garden (1/5)

System of irrigation System of Mister Outdoor,With 10 Nozzle for Garden Patio Patio Diy, 10pcs ,Nozzle of Spraying in Brass for Garden (2/5)

System of irrigation System of Mister Outdoor,With 10 Nozzle for Garden Patio Patio Diy, 10pcs ,Nozzle of Spraying in Brass for Garden (3/5)

System of irrigation System of Mister Outdoor,With 10 Nozzle for Garden Patio Patio Diy, 10pcs ,Nozzle of Spraying in Brass for Garden (4/5)

System of irrigation System of Mister Outdoor,With 10 Nozzle for Garden Patio Patio Diy, 10pcs ,Nozzle of Spraying in Brass for Garden

~~£22.03~~

Free shipping

Pack of 20 brass misting nozzles for outdoor cooling systems and greenhouse landscaping dust control, 0.012" (0.3 mm) orifice, 10/24 UNC (1/5)

Pack of 20 brass misting nozzles for outdoor cooling systems and greenhouse landscaping dust control, 0.012" (0.3 mm) orifice, 10/24 UNC (2/5)

Pack of 20 brass misting nozzles for outdoor cooling systems and greenhouse landscaping dust control, 0.012" (0.3 mm) orifice, 10/24 UNC (3/5)

Pack of 20 brass misting nozzles for outdoor cooling systems and greenhouse landscaping dust control, 0.012" (0.3 mm) orifice, 10/24 UNC

~~£34.84~~

Free shipping

100pcs Micro Drip Irrigation Sprinklers, 360 Degree 8 Holes Water Flow Irrigation Emitters for 1/4" (4-7mm) Tubing, for Garden Drip Irrigation System, Green (1/5)

100pcs Micro Drip Irrigation Sprinklers, 360 Degree 8 Holes Water Flow Irrigation Emitters for 1/4" (4-7mm) Tubing, for Garden Drip Irrigation System, Green

~~£58.41~~

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Green) (1/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Green) (2/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Green) (3/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Green)

~~£44.87~~

200pcs Adjustable Drip Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Garden (1/5)

200pcs Adjustable Drip Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Garden (2/5)

200pcs Adjustable Drip Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Garden (3/5)

200pcs Adjustable Drip Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Garden

~~£44.87~~

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Blue) (1/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Blue) (2/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Blue) (3/5)

50 Pieces Irrigation Dripper, 360 Degree Adjustable Micro Sprinkler for 1/4" (4-6mm) Irrigation Tubing (Blue)

~~£44.87~~

200pcs Adjustable Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Gardening (1/5)

200pcs Adjustable Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Gardening (2/5)

200pcs Adjustable Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Gardening (3/5)

200pcs Adjustable Irrigation Drippers Automatic Watering System Micro Sprinklers for DIY Plant Gardening

~~£44.87~~

100pcs Blue Plastic Drip Irrigation Stake Sprinklers, Automatic Irrigation Emitter for Indoor Plants and Landscaped Gardens (1/5)

100pcs Blue Plastic Drip Irrigation Stake Sprinklers, Automatic Irrigation Emitter for Indoor Plants and Landscaped Gardens (2/5)

100pcs Blue Plastic Drip Irrigation Stake Sprinklers, Automatic Irrigation Emitter for Indoor Plants and Landscaped Gardens (3/5)

100pcs Blue Plastic Drip Irrigation Stake Sprinklers, Automatic Irrigation Emitter for Indoor Plants and Landscaped Gardens

~~£67.86~~

100pcs Micro Drip Irrigation Sprinklers, 360 Degree 8 Holes Water Flow Irrigation Emitters for 1/4" (4-7mm) Tubing, for Garden Drip Irrigation System, Green

~~£58.29~~

100pcs Micro Drip Irrigation Sprinklers, 360 Degree 8 Holes Water Flow Irrigation Emitters for 1/4" (4-7mm) Tubing, for Garden Drip Irrigation System, Green

~~£55.05~~

TRRY 12-Piece Drip Irrigation Kit, Automatic Plant Sprinklers, Plant Watering Dispenser Irrigation System with Adjustable Switch for Indoor and Outdoor Home and Garden (1/5)

TRRY 12-Piece Drip Irrigation Kit, Automatic Plant Sprinklers, Plant Watering Dispenser Irrigation System with Adjustable Switch for Indoor and Outdoor Home and Garden

~~£33.66~~

Narrow down your search

Retractable washing line

Washing line pole

Washing line

Zip line

Wall mounted washing line

Air line fittings

Filter by

Micro sprinklers