1/2" Plastic Impact Sprinkler – 24° Full Circle | 2.5 x 1.8 mm Nozzle

was $9.95 Special Price $6.52

Built for commercial agriculture, the RK-21 delivers reliable, full-circle coverage with a 32–39 ft. throw radius at 30–55 PSI. Color-coded bayonet nozzles snap in and out for fast field changes, and the integrated stream straightening vane maximizes distance per PSI. Stainless steel spring and pin ensure years of corrosion-free service.

Connection	1/2" MNPT
Flow Rate	2.6–7.3 GPM
Throw Radius	32.8–39.4 ft.
Operating Pressure	30–55 PSI
Trajectory	24°
Coverage Pattern	Full Circle
Drive Type	Spring Arm Impact

See Nozzle Performance Chart

Availability: In stock

SKU

RK-21

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Delivery time: 2-4 business days

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Details

RK-21 Plastic Impact Sprinkler – Reliable Full-Circle Coverage for Commercial Fields

The RK-21 is a workhorse 1/2" plastic impact sprinkler engineered for row crops, pastures, and nursery irrigation. Its 24° trajectory and 2.6–7.3 GPM flow range make it versatile enough for everything from low-pressure drip-to-sprinkler conversions to full-field coverage on small acreage farms.

Why Farmers Choose the RK-21

Color-coded bayonet nozzles – Identify sizes at a glance and swap them in seconds without tools
Integrated stream straightening vane – Produces a coherent jet for maximum throw distance
Engineering-grade plastic body – Lightweight, corrosion-proof, and UV-resistant for seasons of outdoor use
Stainless steel spring & pin – The components that take the most abuse are built to last
40 ft. recommended spacing – Achieves excellent distribution uniformity at head-to-head overlap

Construction

Body: Engineering-grade plastic
Spring: Stainless steel
Pin: Stainless steel

More Information

More Information
Base	1/2" MNPT
Flow	2.6-7.3 GPM
Throw Radius	32.8-39.4 ft.
Operating Pressure	30-55 PSI
Trajectory Angle	24°
Operation	Full Circle
Drive Mechanism	Spring Arm Impact