Spring Garden: May Garden Checklist For Zones 4-5
May 7th 2026
Maintain perfect humidity levels and regulate rising spring temperatures in your greenhouse with the Netafim CoolNet Pro Fogger. Engineered for commercial-grade cooling, this cross-shaped fogger utilizes four high-performance nozzles to produce an ultra-fine 65-micron mist. This incredibly small droplet size ensures rapid evaporation, cooling the air and boosting humidity without soaking your plants or soil below. Outfitted with an integrated anti-drain check valve, it guarantees drip-free operation the moment your system shuts off. Simply suspend the fogger from your overhead 1/2" mainline tubing using the required Micro-Sprinkler/Fogger Hanging Assembly.
Review the exact performance metrics to integrate the CoolNet Pro into your overhead climate control system.
| Specification | Value |
|---|---|
| Application | Greenhouse Humidity & Evaporative Cooling |
| Flow Rate | 8.1 GPH Total (4 x 2.0 GPH Nozzles) @ 60 PSI |
| Droplet Size | Average 65 Microns @ 60 PSI |
| Check Valve Open Pressure | 28 PSI |
| Check Valve Close Pressure | 13 PSI |
| Required Accessory | Micro-Sprinkler/Fogger Hanging Assembly |
Build your overhead greenhouse climate system correctly for optimal evaporation.
Step 1: Prep the Overhead Mainline
Using a DripWorks key punch, create a clean hole in your suspended 1/2-inch or 3/4-inch poly mainline tubing. Space these holes exactly 36 inches apart over your benches.
Step 2: Attach the Hanging Assembly
Insert the barb of your Micro-Sprinkler/Fogger Hanging Assembly firmly into the punched hole. A weighted drop-tube assembly is necessary to keep the fogger perfectly level.
Step 3: Connect the CoolNet Fogger
Press the Netafim CoolNet Pro Fogger securely onto the bottom female connection of the Hanging Assembly.
Step 4: Regulate Pressure & Filter
Ensure your water source is filtered (140 mesh recommended) and that your system is pushing adequate pressure. For the 65-micron droplet size, 60 PSI is optimal, and the system must hit at least 28 PSI to open the check valves.
Is the Netafim CoolNet Pro Fogger good for spring greenhouse cooling?
Yes, the Netafim CoolNet Pro Fogger is perfect for regulating spring and summer greenhouse temperatures. It produces an ultra-fine 65-micron mist that evaporates rapidly, cooling the air and increasing humidity without over-wetting your plants.
Because the droplets flash-evaporate before hitting the benches, it keeps foliage dry, which is critical for preventing fungal diseases in high-humidity environments.
How does the check valve on the Netafim CoolNet Pro Fogger work?
The built-in purple pin check valve opens at 28 PSI and instantly closes at 13 PSI when the system turns off. This provides an instant on/off effect and prevents the overhead lines from draining onto your plants.
How high should I hang the Netafim CoolNet Pro Fogger?
For optimal evaporation and humidity control, you should install the CoolNet Fogger 18 to 30 inches above your greenhouse benches, spacing the fogger heads approximately 36 inches apart along your mainline.
What hardware do I need to install the Netafim CoolNet Pro Fogger?
This commercial fogger requires the DripWorks Micro-Sprinkler/Fogger Hanging Assembly. The hanging assembly connects the fogger head directly to your suspended overhead 1/2-inch or 3/4-inch poly mainline tubing.
Please note the strict requirements for this commercial-grade unit:
Ensure your overhead greenhouse cooling system operates flawlessly with these required components:
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