K-RAIN ROTATOR SPRAY DIY 1/2 K1

A ½-inch gear-driven DIY rotor sprinkler (K1 Smart Set) designed for small to medium lawn irrigation, offering easy arc adjustment, efficient water distribution, and simple installation as a spray head replacement.

The K-Rain K1 Rotator Spray DIY 1/2 is a compact gear-driven rotor sprinkler designed for homeowners who want to upgrade from fixed spray nozzles to a more efficient rotating irrigation system.

It is part of the K1 Smart Set Rotor series, which replaces standard ½-inch pop-up spray heads with a rotary mechanism that delivers water in controlled rotating streams. This improves water absorption, reduces runoff, and provides more uniform coverage compared to traditional misting sprays.

The K1 rotor uses a reversing gear-drive system, allowing smooth back-and-forth rotation across an adjustable arc. It typically supports 40° to 360° arc adjustment, making it suitable for corners, edges, and full-circle lawn zones.

This "DIY" version is designed for easy installation into existing ½-inch spray risers without needing major system changes. It is commonly used in residential irrigation upgrades where efficiency and coverage consistency are priorities.

Features

• ½-inch inlet DIY rotor (replaces standard spray heads)
• Gear-driven reversing rotor mechanism
• Adjustable arc: approx. 40°–360°
• Multi-stream rotating water distribution
• Improves water efficiency vs fixed spray heads
• Reduces runoff and surface pooling
• Easy top arc adjustment (tool-free setting)
• Compatible with low-flow residential irrigation systems
• Designed for simple DIY retrofit installation
• Quiet operation compared to older impact sprinklers

Specifications

• Model: K-Rain K1 Smart Set Rotor (½" DIY version)
• Inlet size: ½" FNPT (standard spray riser connection)
• Arc range: 40° – 360°
• Spray radius: approx. 5.5 m – 10 m (variable by nozzle/pressure)
• Flow rate: low-to-medium (varies by nozzle size)
• Operating pressure: approx. 2.1 – 3.4 bar typical system range
• Pop-up height: typically 4 inch (standard mini rotor body)
• Application: residential lawns, small turf zones, retrofit spray replacement
• Mechanism: gear-driven reversing rotor system
• Material: UV-resistant engineering-grade plastic

Dimensions

• Pop-up height: ~4 inch (≈10 cm)
• Body size: standard ½-inch spray head footprint
• Installation depth: compatible with standard spray risers and shallow valve boxes
• Exposed top: low-profile adjustable rotor cap when retracted
• Retrofit fit: designed to drop into existing spray head locations