K-Rain SURE THROW IMPACT SPRINKLER | ST-IS45

Product Overview

When impact sprinklers fail during a mid-summer heatwave, your clients face immediate turf stress and potential landscape loss. A malfunctioning head often leads to uneven coverage, dry spots, and wasted water that can quickly result in costly call-backs and frustrated property owners. During the peak of the irrigation season, sourcing reliable replacement heads becomes a race against limited local inventory and delayed shipping windows. By securing your supply of K-Rain Sure Throw Impact Sprinklers now, you avoid the seasonal rush and ensure your crews have the hardware necessary to keep commercial and residential systems operational without downtime.

The K-Rain ST-IS45 outperforms cheaper retail grade alternatives by utilizing a weighted arm and a heavy-duty brass weighted pin. This design prevents the common stalling issues found in plastic-only impacts, especially when operating under varying pressure conditions. This head allows for faster replacements on-site because it is designed to drop directly into existing 1/2 inch risers with minimal adjustment. Investing in professional-grade impact technology reduces the frequency of maintenance visits and provides your business with a reputation for installing components that survive harsh environmental exposure.

Product Specifications

Available Models & Sizes

The K-Rain Sure Throw series is primarily available in the ST-IS45 model featuring a 1/2 inch male pipe thread connection. This configuration is the industry standard for riser-mounted impact applications. For high-volume projects, bulk quantities are available to ensure consistency across large sites. Please contact our sales team for full pallet pricing and additional nozzle configuration options.

Key Features

• Weighted drive arm ensures consistent rotation even in low-pressure scenarios.
• Dual-action weighted pin provides a smoother transition for improved water distribution.
• Precision-engineered nozzle provides a wind-resistant pattern to minimize evaporative loss.
• Simple friction collar adjustments allow your crews to set spray patterns from 20 to 340 degrees quickly.
• Corrosion-resistant materials extend the service life in systems using reclaimed or well water.
• The deflector plate allows for fine-tuning the radius to prevent over-spray on sidewalks and structures.

Common Applications

• Commercial landscape irrigation
• Residential lawn and garden systems
• Agricultural and crop irrigation
• Municipal parks and public spaces
• Greenhouse and nursery operations
• Erosion control and stormwater systems

Installation Notes

Ensure all supply lines are thoroughly flushed before installing the ST-IS45 to prevent debris from clogging the nozzle orifice. Thread the sprinkler onto a 1/2 inch NPT riser using professional grade thread sealant or PTFE tape to prevent leaks at the base. Adjust the friction collars to the desired arc before turning on the water; final radius adjustments should be made using the diffuser pin while the system is under pressure to reach the exact coverage requirements of the zone. Always comply with local backflow prevention codes when installing any overhead irrigation components.