Product Description

The I-25 gets the job done with power, efficiency, and commercial-grade reliability. With a robust watering radius of 11.9 to 21.6m, this rotor can be used in a variety of applications and environments. The compact, highly durable design is available in a plastic model or stainlesssteel for tough-as-nails strength.  I-25 also has options for
reclaimed water ID and high-speed. A standard check valve is built in, and a wide selection of high performance nozzles are available. Efficient, tough, and built-to-last, Hunter’s I-25 rotors work hard day in and day out so you don’t have to.

 

Features:

  • Plastic/Stainless Steel riser options: 10cm, 15cm
  • Arc settings: 50º to 360º
  • Factory installed rubber cover
  • Through-the-top arc adjustment
  • Quick check arc mechanism
  • Water lubricated gear-drive
  • Warranty period: 5 years
  • Inlet Thread: 25mm BSPF

 

Specs:

  • Radius: 11.9 to 21.6m
  • Flow rate: 13.6 – 120.7 l/min
  • Recommended pressure range: 250 – 700 kPa
  • Operating pressure range: 0250 – 690 kPa
  • Precipitation rates: 15 mm/hr approx.
  • Nozzle trajectory: 25º

 

The Hunter Gear Drive Adjustment Tool can be found here: Link

 

Hunter I-25 Ultra Gear Drive Sprinklers

100mm Hunter I-25 Ultra Pop-Up Gear Drive In stock SKU: ISG-HUNI25100 $77.14
$165.30
100mm Hunter I-25 Ultra Pop-Up Gear Drive
SKU ISG-HUNI25100
MPN I-25-04
UPC 611698156056

In stock

Only
$77.14

$165.30
150mm Hunter I-25 Ultra Pop-Up Gear Drive SKU: ISG-HUNI25150 $116.53
$249.71
150mm Hunter I-25 Ultra Pop-Up Gear Drive
SKU ISG-HUNI25150
MPN I-25-06

Available in 1-3 Days

Only
$116.53

$249.71
100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft) In stock SKU: ISG-HUNI25100SS $99.70
$213.64
100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)
SKU ISG-HUNI25100SS
MPN I-25-04-SS
UPC 9314538097243

In stock

Only
$99.70

$213.64
150mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft) SKU: ISG-HUNI25150SS $141.82
$303.90
150mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)
SKU ISG-HUNI25150SS
MPN I-25-06-SS
UPC 9314538097199

Available in 1-3 Days

Only
$141.82

$303.90
100mm Hunter I-25 Ultra Pop-Up Gear Drive (Bulk Box of 12) In stock SKU: ISG-HUNI25100/12 $902.57
$1933.98
100mm Hunter I-25 Ultra Pop-Up Gear Drive (Bulk Box of 12)
SKU ISG-HUNI25100/12
MPN I-25-04/20
UPC 40611698156054

In stock

Only
$902.57

$1933.98
100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)(box of 12 + key) In stock SKU: ISG-HUNI25100SS/12 $1136.63
$2435.52
100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)(box of 12 + key)
SKU ISG-HUNI25100SS/12
MPN I-25-04-SS/20
UPC 40611698156085

In stock

Only
$1136.63

$2435.52

Product Description

The I-25 gets the job done with power, efficiency, and commercial-grade reliability. With a robust watering radius of 11.9 to 21.6m, this rotor can be used in a variety of applications and environments. The compact, highly durable design is available in a plastic model or stainlesssteel for tough-as-nails strength.  I-25 also has options for
reclaimed water ID and high-speed. A standard check valve is built in, and a wide selection of high performance nozzles are available. Efficient, tough, and built-to-last, Hunter’s I-25 rotors work hard day in and day out so you don’t have to.

 

Features:

  • Plastic/Stainless Steel riser options: 10cm, 15cm
  • Arc settings: 50º to 360º
  • Factory installed rubber cover
  • Through-the-top arc adjustment
  • Quick check arc mechanism
  • Water lubricated gear-drive
  • Warranty period: 5 years
  • Inlet Thread: 25mm BSPF

 

Specs:

  • Radius: 11.9 to 21.6m
  • Flow rate: 13.6 – 120.7 l/min
  • Recommended pressure range: 250 – 700 kPa
  • Operating pressure range: 0250 – 690 kPa
  • Precipitation rates: 15 mm/hr approx.
  • Nozzle trajectory: 25º

 

The Hunter Gear Drive Adjustment Tool can be found here: Link

 

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Product Specifications

100mm Hunter I-25 Ultra Pop-Up Gear Drive150mm Hunter I-25 Ultra Pop-Up Gear Drive100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)150mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)100mm Hunter I-25 Ultra Pop-Up Gear Drive (Bulk Box of 12)100mm Hunter I-25 Ultra Pop-Up Gear Drive (SS Shaft)(box of 12 + key)
Product TypeGear Drive SprinklerGear Drive SprinklerGear Drive SprinklerGear Drive SprinklerGear Drive SprinklerGear Drive Sprinkler
Product MaterialPlasticPlasticStainless Steel, PlasticStainless Steel, PlasticPlasticStainless Steel, Plastic
Product Inlet Thread Size25mm BSPF25mm BSPF25mm BSPF25mm BSPF25mm BSPF25mm BSPF
Product Min. Flow Output (Lpm)14.414.414.414.414.414.4
Product Max. Flow Output (Lpm)119119119119119119
Product Max. Inlet Pressure (kPa)700700700700700700
Product Min. Recommended Pressure (kPa)170170170170170170
Product Max. Recommended Pressure (kPa)450450450450450450
Product Pop-Up Height100mm150mm100mm150mm100mm100mm
Product Min. Spray Radius (m)121212121212
Product Max. Spray Radius (m)212121212121
Product Extra FeaturesCheck ValveCheck ValveCheck ValveCheck ValveCheck ValveCheck Valve
Product Warranty5 year5 year5 year5 year5 year5 year

Commercial Gear Drive Sprinklers FAQs

Gear drive sprinklers offer adjustable spray patterns and flow rates. This enables a more precise water distribution system that minimises waste and promotes even coverage. Gear drive sprinklers are particularly efficient for large-scale applications.

Yes, many gear drive sprinklers can perform efficiently even under fluctuating water pressure. They maintain consistent water distribution without significant pressure drops.

Yes, commercial gear drive sprinklers are available with lilac caps, which signify that they are compatible with non-potable water systems. They are suitable for applications looking to utilise alternative water sources.

Maintenance for gear drive sprinklers is generally minimal, but regular checks on the risers and nozzles as part of a routine system service are recommended to maintain optimal performance. Keep the system clear of debris to prolong its lifespan.

Yes, installation may require additional components like pressure regulation & check valves precise flow and pressure management, depending on the scale and complexity of your irrigation system.

A commercial gear drive sprinkler is a heavy-duty, rotor sprinkler designed for large-scale applications, such as sports fields, parks, golf courses, and commercial landscapes. Compared to residential models, they typically offer longer spray distances, higher durability, and advanced adjustment features to handle demanding environments.

Consider factors like spray radius, flow rate, arc adjustability, water pressure requirements, nozzle options, and the size of the area to be covered. Our product pages provide detailed specifications, and you can speak with our Design Department for expert help.

If the sprinkler is not rotating, check for obstructions, debris in the gear mechanism, or insufficient water pressure. Cleaning the sprinkler and ensuring the water supply is adequate usually resolves the issue. Beyond that, internal gears can get stripped & fail if the top of the riser is manually rotated. In this case it will need to be replaced.

Uneven coverage may be caused by clogged nozzles, incorrect arc or distance settings, low water pressure, or worn gears. Regular maintenance and correct adjustment help maintain even water distribution.

There’s no best type of sprinkler, just better sprinklers for different applications. Gear Drives are better for large areas, over 5m. Pop-Ups are ideal for 1.5-5m & Micro sprays are excellent for anything under that.

The type of nozzle all depends on how far you need to spray, each nozzle is specified by the radius it sprays & the spray arc it provides (0-360 degrees). Aim to spray to the base of the next closest sprinkler for even watering. For more information on planning, check out our Product Guides.

Each sprinkler & nozzle will push out water at different rates, but the key factor is the flow rate of your water supply. Work that out with a simple timed bucket test. From there, you can work out how much water each sprinkler you’re looking at uses & work within your flow limit. For more information, check our Product Guides.

As you install a system, it’s almost inevitable that small fragments of dirt will get into the pipe, for this reason you should always flush out the system before running it the first time. This can be done by leaving an open end at the farthest point of each irrigation zone & operating the zone for 15 or so seconds to flush it out. Then plug it up & you’re good to go! This can also be said for any other times dirt may have gotten into the system (eg: further irrigation repairs or a mains water supply fault).

We definitely don’t recommend it. Typically, drip tube will deliver the water at a far slower rate that sprays. Because of this, if you were to have both on the same zone, the areas with drip would be left far drier than the areas with sprinkler coverage. If you do want to water some areas with drip & some with sprinklers, it can be done, but each will just need to be run on their own separate irrigation zones.

Firstly, each sprinkler &/or nozzle has a specified spray radius. Secondly, sprinklers are typically designed to deliver more water at their base & progressively less the further away you get. For this reason, you want to position sprinklers so they spray to hit the base of the next sprinkler. Of course this isn’t possible all the time so in those cases, aim to spray at least 80% of the way. By doing this you will guarantee even water across your lawn or garden.

Even on a typical domestic system running on mains water a filter is still a good idea. In the event of a water main fault where rubbish does find it’s way down the line, a filter will protect the system from blockage and or failure. On systems operating off recycled water, like from a tank, a screen filter is mandatory. Debris like silt & dirt from recycled water is the most common cause of blockages of failures in irrigation systems.

Spray irrigation mimics natural rainfall by distributing water through a system of sprinklers and pipes. A pressurised water source – either mains supply, or from a pump – forces water through pipework and out of the water sprinkler nozzles, creating a spray that falls onto the landscape. This method efficiently delivers water to a wide area, ensuring even coverage and promoting healthy plant growth.

Spray irrigation systems, or sprinkler systems, distribute water through above-ground sprinklers, creating a wide spray pattern covering a larger area. This makes it efficient for watering lawns and large garden beds where uniform coverage is desired. However, this setup can lead to water loss through evaporation and wind drift, especially in hot or windy conditions.

Drip irrigation, on the other hand, delivers water directly to the plant roots through a grid of tubes with embedded emitters. This direct delivery approach is ideal for watering specific plants, rows of vegetables or areas with irregular shapes. By delivering water slowly and directly to the root zone, drip irrigation promotes deeper root growth and reduces weed germination. Please keep in mind that this system may not be suitable for large lawns, overly sandy areas or areas that require overhead watering.

Regular maintenance ensures your spray irrigation system operates efficiently and provides optimal watering for years to come. Start by periodically inspecting your system for leaks, clogged nozzles and damaged heads. Clear any debris obstructing the spray heads and adjust sprinkler heads to ensure proper coverage. It’s also important to flush your system occasionally to remove any sediment buildup. And although not typical for the Australian climate, some people may need to winterise their system in colder climates by draining the water to prevent pipes from freezing and cracking.

While many maintenance tasks can be performed by homeowners, consider scheduling professional maintenance at least once a year. A qualified technician can thoroughly inspect your system, identify potential problems and perform necessary repairs or adjustments to optimise performance and water efficiency.

Fully installed by a professional, a domestic irrigation system will come out to about $1000 per zone. And as a DIY project, it can look more like $300 per zone! But of course that’s a very rough estimate, each system is different and there are a lot of factors to consider. Thankfully, we have the only tool around that INSTANTLY give an accurate estimate for your. Try our INSTANT Irrigation Quote Tool here!

To choose the right irrigation system, consider the size and layout of your garden or lawn, the types of plants you’re watering and your water source. Spray systems are ideal for most applications like lawns and gardens, while drip irrigation works well for mulched garden beds and areas exposed to wind and evaporation. For expert advice tailored to your needs, request a quote from us.

To set up an irrigation system, start by planning the layout, then install the mainline pipes, valves and fittings. Attach the sprinklers, drip emitters or other irrigation devices, and connect the system to a controller. Finally, test and adjust the system to check for proper coverage and efficiency. For a more precise and tailored setup, visit our Design Department. Our experts can design and quote a customised irrigation system that perfectly fits your landscape.

At SunshowerOnline, we offer a wide range of irrigation systems perfect for home gardens, including spray irrigation, drip irrigation, pop-up sprinklers, micro irrigation. Just getting started? Our DIY kits make installation simple for beginners, while our expert team is available to help you design the ideal setup for your garden’s unique needs.

Our experienced Design Department can create a custom irrigation plan tailored to your property, whether you’re a homeowner, landscaper, or commercial manager. Simply provide your site details and requirements, and we’ll recommend the best products and layout for efficient, reliable watering. Need an instant quote? Try our INSTANT Quote tool!

Absolutely. We stock a comprehensive range of contractor-grade irrigation supplies, including control systems, valves, fittings, and commercial sprinklers, trusted by professionals across Australia. Bulk order discounts and trade support are available for our trade and commercial customers.

Yes, we offer step-by-step installation guides, video tutorials, and our service doesn’t stop once we a purchase is made. Expert advice over phone, chat or in-store is here to help! Whether you’re a DIY enthusiast or a professional installer, our resources make setting up your irrigation system straightforward and stress-free.

Yes, many of our irrigation products are designed for easy upgrades and retrofits. Whether you’re replacing old sprinklers, adding drip lines, or automating your watering schedule, our team can recommend compatible products and provide installation support.

To maximise the lifespan of your irrigation system, choose high-quality components, follow correct installation procedures, and perform regular maintenance such as flushing lines and checking for leaks. Our products are built to withstand Australian conditions, and our team is always here to offer ongoing support.

Yes, SunshowerOnline delivers irrigation supplies across Australia with fast, reliable shipping. Our customer service team is available to answer your questions, offer technical support, and ensure you find the right products for your project—no matter where you are located.

Hunter I-25 Ultra Gear Drive Sprinklers·Hunter I-25 Ultra Gear Drive Sprinklers·

Customer Reviews

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Paddy K. (Sydney, NSW)
Hunter I-25 TLTC

We have replaced 15 of the I-25 Pop up's over the past 4 years and not experienced any issues. Fairly simple response - Once you use quality materials you never look for a substitution. Tried & True. Service & product.

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