RK-1/4L Brass Primary Nozzle 1/4" – For 1" Head (RK-44, RK-45)
$4.20
Replacement brass primary nozzle sized 1/4" for 1" brass impact sprinkler heads RK-44 and RK-45 only. Not compatible with RK-40F or RK-43. The primary nozzle controls flow rate and throw radius on these large-area heads. This size (1/4"): smallest — lower flow and shorter radius for tighter spacing.
| Nozzle Size | 1/4" |
|---|---|
| Type | Primary (main stream) |
| Compatible Heads | 1" brass impact — RK-44 and RK-45 only |
| Not Compatible With | RK-40F, RK-43 |
| Material | Brass |
Availability:
In stock
SKU
RK-1/4L
Ships Same Day
All orders placed by 12 PM local warehouse time will ship the same day. Some exclusions apply. Delivery time may increase if item isn't available in closest warehouse.
Delivery time: 2-4 business days
RK-1/4L – 1/4" Brass Primary Nozzle for 1" Impact Heads (RK-44 / RK-45)
The RK-1/4L is a 1/4" brass replacement primary nozzle designed exclusively for the RK-44 and RK-45 1" brass impact sprinkler heads. It is not interchangeable with nozzles for the RK-40F or RK-43 — confirm the head model before ordering. The primary nozzle determines the head's flow rate and throw radius, making nozzle selection critical for matching system hydraulics and achieving target application rates on large-area irrigation systems.
Key Features and Benefits
- Size 1/4" — Smallest — lower flow and shorter radius for tighter spacing. Select based on operating pressure, head spacing, and required application rate.
- Brass construction — durable and corrosion-resistant for continuous-run large-area farm and pasture irrigation.
- Critical compatibility note — these nozzles fit RK-44 and RK-45 only; do not use in RK-40F or RK-43 heads.
- Nozzle sizing principle — smaller orifice reduces flow and radius; larger orifice increases both. Verify against head performance data.
Compatibility
Fits RK-44 and RK-45 only. Not compatible with RK-40F or RK-43.