I-25

This Rugged Rotor Can Stand Up to Any Commercial Job

The I-25 gets the job done with power, efficiency, and commercial-grade reliability. With a robust watering radius of 40’ to 71’, this rotor can be used in a variety of applications and environments. Its compact, highly durable design comes with an optional stainless steel riser for tough-as-nails strength. With a 5-year warranty, the 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.

Product Tabs

Features

Models: 4", 6"
Models stainless riser: 4", 6"
Arc setting: 50 to 360 degrees
Factory installed rubber cover
Through-the-top arc adjustment
Quick check arc mechanism
Water lubricated gear-drive
Nozzle choices: 12
Nozzle range: #4 to #28
Warranty period: 5 years

Automatic Arc Return [1]

This feature returns to the original arc regardless of where the turret is turned. This ensures vandal protection in any environment.

Non-Strippable Drive [2]

The patented, non-strippable, vandal proof drive mechanism enables the turret to be turned without causing damage.

Part- and Full-Circle in One Model [3]

Patented non-reversing 360 for part- and full-circle in one model, from 50 to 360 degrees.

Color Coded Nozzles [4]

Nozzles are easier to differentiate in the field for quick reference and simple installation.

Optional Reclaimed Water ID [5]

Purple caps indicate where non-potable irrigation water is being used.

Stainless Steel Riser [6]

For unforgiving soil conditions, unpredictable climates, or heavy foot traffic, stainless steel is the best choice

Drain Check Valve (up to 10 ft. of elevation) [7]

The drain check valve keeps lines from draining when the system is shut off. This saves water, reduces liability, and increases system life.

Models

I-25 Models Chart

	I-25-04	I-25-06
Overall Height	7-7/8"	10-1/4"
Pop-up Height	4"	6"
Exposed Diameter	1-7/8"	1-7/8"
Inlet Size	1" Female NPT	1" Female NPT

OPTIONS

FACTORY-INSTALLED
Nozzles: #4 to #28 Reclaimed water ID cover High speed rotation model (stainless steel only)

FACTORY-INSTALLED

Nozzles: #4 to #28

Reclaimed water ID cover

High speed rotation model (stainless steel only)

SPECIFICATION BUILDER (PLASTIC)

MODELS	STANDARD FEATURES	FEATURE OPTIONS	NOZZLE OPTIONS
I-25-04 = 4" Pop-up	Adjustable arc, plastic riser, check valve, and 5 nozzles	R = Reclaimed water ID	#4 to #28 = Factory installed nozzle number
I-25-06 = 6" Pop-up	Adjustable arc, plastic riser, check valve, and 5 nozzles	R = Reclaimed water ID	#4 to #28 = Factory installed nozzle number

SPECIFICATION BUILDER (STAINLESS STEEL)

MODELS	STANDARD FEATURES	FEATURE OPTIONS	NOZZLE OPTIONS
I-25-04-SS = 4" Pop-up	Adjustable arc, stainless steel riser, check valve, and 5 nozzles	R = Reclaimed water ID HS = High speed HS-R = High speed and reclaimed water ID	#4 to #28 = Factory installed nozzle number
I-25-06-SS = 6" Pop-up

MODELS

STANDARD FEATURES

FEATURE OPTIONS

NOZZLE OPTIONS

I-25-04-SS = 4" Pop-up

Adjustable arc, stainless steel riser, check valve, and 5 nozzles

R = Reclaimed water ID

HS = High speed

HS-R = High speed and reclaimed water ID

#4 to #28 = Factory installed nozzle number

I-25-06-SS = 6" Pop-up

EXAMPLES

I-25-04	4" pop-up, adjustable arc
I-25-04-SS - R - 18	4" pop-up, adjustable arc, stainless steel riser, reclaimed water ID, and #18 nozzle
I-25-06-SS	6" pop-up, adjustable arc, stainless steel riser

1" and 1.5" Inlet Rotors Comparison Chart

<< View 1/2" and 3/4" Inlet Rotors [8]

A Standard that Has Yet to be Matched Hunter made its reputation on the quality, reliability and innovative features found in its rotary sprinkler line and continues to set the benchmark by which other manufacturer’s rotors are judged.	[9]	[10]	[10]	[11]	[12]
	I-25 [9]	I-40 [10]	I-40-ON [10]	I-60 [11]	I-90 [12]
QUICK SPECS
Inlet Size	1"	1"	1"	1"	1½"
Radius	40' to 71'	44' to 69'	52' to 76'	50' to 67'	73' to 104'
Flow Rate (GPM)	3.8 to 31.5	7.6 to 29.5	13.0 to 33.7	6.5 to 20.8	29.5 to 83.8
FEATURES
Recommended Pressure Range (PSI)	40 to 100	40 to 100	40 to 100	40 to 60	80 to 120
Operating Pressure Range (PSI)	40 to 100	40 to 100	40 to 100	20 to 100	70 to 120
Precipitation Rate (in/hr)	0.4	0.4	0.4	0.4	0.75
Nozzle Trajectory	25 degrees	25 degrees	25 degrees	25 degrees	22.5 degrees
Check Valves	Pre-Installed	Pre-Installed	Pre-Installed	Pre-Installed	Pre-Installed
Specialty Nozzles	Pre-Installed	Pre-Installed	Pre-Installed	Pre-Installed	Pre-Installed
Check Height (ft.)	10	15	15	10	7
Nozzle Options	12	6	6	6	16
Warranty	5 Years	5 Years	5 Years	5 Years	5 Years
ADVANCED FEATURES
Low Angle Nozzle Choices
Automatic Arc Return
Non-Strippable Drive
Part and Full Circle in One Model
Reclaimed Water ID
Factory Installed Drain Check Valve	(10')	(15')	(15')	(10')	(7')
Stainless Steel Riser Option
Applications
Residential
Commercial/Municipalities
Athletic Fields
High Vandalism Areas
Low Pressure Areas
Reclaimed Water

Specifications

Operating Specifications

Radius: 37' to 71'
Flow rate: 3.8 to 31.5 GPM
Recommended pressure range: 40 to 100 PSI
Operating pressure range: 40 to 100 PSI
Precipitation rates: 0.4 in/hr approx.
Nozzle trajectory: 25 degrees

I-25 Nozzle Performance Data

I-25 Nozzle Rack I-25 Nozzle Performance Data
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)	Precip in/hr
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)
4 Yellow	40	40	3.8	0.46	0.53
	50	41	4.3	0.49	0.57
	60	42	4.7	0.51	0.59
	70	43	5.1	0.53	0.61
5 White	40	43	4.4	0.46	0.53
	50	44	4.8	0.48	0.55
	60	45	5.3	0.50	0.58
	70	46	5.6	0.51	0.59
7 Orange	40	45	6.6	0.63	0.72
	50	47	7.0	0.61	0.70
	60	48	7.5	0.63	0.72
	70	49	7.9	0.63	0.73
8 Lt. Brown	40	47	7.7	0.67	0.77
	50	49	8.3	0.67	0.77
	60	50	9.2	0.71	0.82
	70	51	9.9	0.73	0.85
10 Lt. Green	50	51	10.1	0.75	0.86
	60	52	11.1	0.79	0.91
	70	53	12.1	0.83	0.96
	80	54	12.9	0.85	0.98
13 Lt. Blue	50	53	11.2	0.77	0.89
	60	54	12.3	0.81	0.94
	70	55	13.3	0.85	0.98
	80	55	14.3	0.91	1.05
15 Gray	50	56	13.4	0.82	0.95
	60	57	14.3	0.85	0.98
	70	57	15.2	0.90	1.04
	80	58	16.4	0.94	1.08
18 Red	50	58	14.5	0.83	0.96
	60	59	15.7	0.87	1.00
	70	62	16.9	0.85	0.98
	80	63	18.2	0.88	1.02
20 Dk. Brown	60	62	17.8	0.89	1.03
	70	63	19.2	0.93	1.08
	80	64	20.5	0.96	1.11
	90	65	21.8	0.99	1.15
23 Dk. Green	60	64	21.9	1.03	1.19
	70	65	23.6	1.08	1.24
	80	66	25.6	1.13	1.31
	90	67	27.0	1.16	1.34
25 Dk. Blue	60	66	23.5	1.04	1.20
	70	68	25.5	1.06	1.23
	80	69	28.0	1.13	1.31
	90	70	29.5	1.16	1.34
28 Black	70	68	26.9	1.12	1.29
	80	70	28.7	1.13	1.30
	90	71	30.6	1.17	1.35
	100	71	31.5	1.20	1.39

I-25 High Speed Nozzle Performance Data

I-25 Nozzle Rack I-25 High Speed Nozzle Performance Data
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)	Precip in/hr
Nozzle	Pressure (PSI)	Radius (ft.)	Flow (GPM)
4 Yellow	40	37	3.8	0.53	0.62
	50	38	4.3	0.57	0.66
	60	38	4.7	0.63	0.72
	70	39	5.2	0.66	0.76
5 White	40	38	4.4	0.59	0.68
	50	39	4.8	0.61	0.70
	60	40	5.5	0.66	0.76
	70	41	6.0	0.69	0.79
7 Orange	40	40	6.1	0.73	0.85
	50	41	6.9	0.79	0.91
	60	42	7.5	0.82	0.95
	70	44	8.1	0.81	0.93
8 Lt. Brown	40	42	7.2	0.79	0.91
	50	43	8.1	0.84	0.97
	60	44	8.9	0.88	1.02
	70	45	9.8	0.93	1.08
10 Lt. Green	50	46	10.1	0.92	1.06
	60	48	11.1	0.93	1.07
	70	49	12.1	0.97	1.12
	80	50	12.9	0.99	1.15
13 Lt. Blue	50	48	11.2	0.94	1.08
	60	49	12.3	0.99	1.14
	70	51	13.3	0.98	1.14
	80	51	14.3	1.06	1.22
15 Gray	50	49	13.4	1.07	1.24
	60	51	14.3	1.06	1.22
	70	53	15.2	1.04	1.20
	80	54	16.4	1.08	1.25
18 Red	50	50	14.5	1.12	1.29
	60	53	15.7	1.08	1.24
	70	55	16.9	1.08	1.24
	80	57	18.2	1.08	1.25
20 Dk. Brown	60	53	17.8	1.22	1.41
	70	56	19.2	1.18	1.36
	80	58	20.5	1.17	1.35
	90	59	21.8	1.21	1.39
23 Dk. Green	60	56	21.9	1.34	1.55
	70	58	23.6	1.35	1.56
	80	60	25.6	1.37	1.58
	90	61	27.0	1.40	1.61
25 Dk. Blue	60	58	23.5	1.34	1.55
	70	62	25.5	1.28	1.47
	80	64	28.0	1.32	1.52
	90	66	29.5	1.30	1.51
28 Black	70	60	26.9	1.44	1.66
	80	62	28.7	1.44	1.66
	90	65	30.6	1.39	1.61
	100	67	31.5	1.35	1.56
Note: All preciptation rates calculated for 180 degree operation. For the precipitation rate for a 360 degree sprinkler, divide by 2.

I-25 DIMENSIONS CHART

	I-25-04	I-25-06
Overall Height	7-7/8"	10-1/4"
Pop-up Height	4"	6"
Exposed Diameter	1-7/8"	1-7/8"
Inlet Size	1" Female NPT	1" Female NPT

Resources

Literature

[13]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

[21]

I-25 Brochure [13]

[22]

USA

[22]

[21]

I-25 Product Information Guide [22]

[23]

USA

[23]

[21]

I-25 Product Spec Cut Sheet [23]

Manuals

[24]

USA

[24]

[21]

I-25 Installation Card [24]

Photos

[25]

USA

[25]

[21]

I-25 Photos [25]

Specifications

[26]

USA

[26]

Metric

[27]

[21]

I-25 Installation Details - DWG [26]

[28]

USA

[28]

Metric

[29]

[21]

I-25 Installation Details - DXF [28]

[30]

USA

[30]

Metric

[31]

[21]

I-25 Installation Details - PDF [30]

[32]

USA

[32]

[21]

I-25 Written Specification [32]

[33]

USA

[33]

[21]

I-25 (High Speed) Written Specification [33]

Video

[34]

USA

[34]

[21]

Rotor Series: Adjusting my Rotors [34]

[35]

USA

[35]

[21]

Rotor Series: Cleaning a Filter on Rotor [35]

[36]

USA

[36]

[21]

Rotor Series: Installing a Nozzle on a Rotor [36]

[37]

USA

[37]

[21]

Rotor Series: Replacing Riser Seals on Rotors [37]

Support

Topic	Title [38]	Rating [39]
FAQs, Troubleshooting, Video	What are some troubleshooting tips for a rotor that doesn't fully pop-up? >> Read More [40]	4.6
FAQs	What is the purpose of the little hole that leaks water on the side of my rotor's stem? >> Read More [41]	4.3
Installation Procedures	Staking Kit and Reclaimed Water Identification >> Read More [42]	4.25
Adjustment, FAQs, Video	How do I adjust the radius or distance of throw on my Hunter rotor? >> Read More [43]	4
Troubleshooting, Video	Why has my rotor stopped rotating? >> Read More [44]	3.8
Adjustment, FAQs	How do I obtain a Hunter adjustment wrench? >> Read More [45]	3.5
FAQs, Installation Procedures, Troubleshooting	Why does the little hole on the side of my rotor's riser leak water? >> Read More [46]	3
FAQs	What are the advantages of a stainless steel rotor over a plastic rotor? >> Read More [47]	3
Adjustment, Educational	Hunter Rotor Pitot Gauge >> Read More [48]	2.75
Adjustment, FAQs	How do I adjust the arc on my Hunter rotor? >> Read More [49]	2.35

I-25

I-25

Product Tabs

Automatic Arc Return [1]

Non-Strippable Drive [2]

Part- and Full-Circle in One Model [3]

Color Coded Nozzles [4]

Optional Reclaimed Water ID [5]

Stainless Steel Riser [6]

Drain Check Valve (up to 10 ft. of elevation) [7]

I-25 Models Chart

OPTIONS

SPECIFICATION BUILDER (PLASTIC)

SPECIFICATION BUILDER (STAINLESS STEEL)

EXAMPLES

1" and 1.5" Inlet Rotors Comparison Chart

I-25 Nozzle Performance Data

I-25 Nozzle Performance Data

4

5

7

8

10

13

15

18

20

23

25

28

I-25 High Speed Nozzle Performance Data

I-25 High Speed Nozzle Performance Data

4

5

7

8

10

13

15

18

20

23

25

28

I-25 DIMENSIONS CHART

Literature

Manuals

Photos

Specifications

Video

View All Support Articles for This Product [50]

I-25 High Speed Nozzle
Performance Data