I-25

Quick Specs

Application: Commercial/Municipal

Radius: 40' to 71'

Flow Rate: 3.8 to 31.5 GPM

Inlet Size: 1'' NPT

HomeownerProfessional

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

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, B	R = Reclaimed water ID B = BSP inlet threads	#4 to #28 = Factory installed nozzle number
I-25-06 = 6" Pop-up

MODELS

STANDARD FEATURES

FEATURE OPTIONS

NOZZLE OPTIONS

I-25-04 = 4" Pop-up

Adjustable arc, plastic riser, check valve, and 5 nozzles

R, B

R = Reclaimed water ID

B = BSP inlet threads

#4 to #28 = Factory installed nozzle number

I-25-06 =
6" Pop-up

SPECIFICATION BUILDER (STAINLESS STEEL)

MODELS	STANDARD FEATURES	FEATURE OPTIONS	NOZZLE OPTIONS
I-25-04-SS = 4" Pop-up	Adjustable arc, plastic riser, check valve, and 5 nozzles	R, HS, HS-R, B	R = Reclaimed water ID HS = High speed HS-R = High speed and reclaimed water ID B = BSP inlet threads	#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, plastic riser, check valve, and 5 nozzles

R, HS, HS-R, B

R = Reclaimed water ID

HS = High speed

HS-R = High speed and reclaimed water ID

B = BSP inlet threads

#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

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

Support

Topic	Title	Rating
FAQs, Troubleshooting, Video	What are some troubleshooting tips for a rotor that doesn't fully pop-up? Rotary sprinklers require a certain amount of pressure and flow to operate properly. If the rotor does not receive the pressure it needs to pop up a leaky head will result.Her... >> Read More	5
Adjustment, FAQs	How do I adjust the arc on my Hunter rotor? The easiest way to make adjustments on your Hunter rotor is to use a Hunter adjustment wrench. There are two adjustments that can be made on your rotor, the arc and the radius... >> Read More	5
Installation Procedures	Staking Kit and Reclaimed Water Identification Hunter makes an excellent assortment of accessory items that either connect to, or work in tandem with many of our products.Highlighted here are just a couple of those accesso... >> Read More	4.5
Adjustment, FAQs, Video	How do I adjust the radius on my Hunter rotor? The easiest way to make adjustments on your Hunter rotor is to use a Hunter adjustment wrench. This adjustment wrench is available through the Hunter online store.There are tw... >> Read More	4
FAQs	What is the purpose of the little hole that leaks water on the side of my rotor's stem? It's a combination drain hole and flush hole.It's a drain hole because we need to drain the water from below the nozzle turret so it doesn't push up on the nozzle turret in fr... >> Read More	4
Troubleshooting, Video	Why has my rotor stopped rotating? Hunter rotary sprinklers operate on a “gear drive” system. When in operation, water turns a small turbine in the base of the sprinkler, which drives a series of gears that cau... >> Read More	3.6
Adjustment, FAQs	How do I obtain a Hunter adjustment wrench? The Hunter adjustment wrench consists of a 3/32 allen key, two convenient finger loops for gripping and an opposite side arc adjustment key for all your Hunter rotor adjustmen... >> Read More	3.3
FAQs	What are the advantages of a stainless steel rotor over a plastic rotor? The stainless steel option on Hunter rotors offers mutliple benefits, here are a few:Vandal Resistance - Parks and other common ground areas that have heavy foot traffic can s... >> Read More	3
FAQs, Installation Procedures, Troubleshooting	Why does the little hole on the side of my rotor's riser leak water? It's likely the rotor leaks water because of the "drool" from the nozzle. As the screw diffuses the stream, a little of the water runs down the front of the nozzle turret and ... >> Read More	3
Adjustment, Educational	Hunter Rotor Pitot Gauge The easiest of the rotor pressure gauges to use, the Rotor Pitot Gauge (P/N 052801) has a tube that is placed directly in front of the primary nozzle stream for an accurate wo... >> Read More	2.65

View All Support Articles for This Product

Rotors Comparison Chart (1")

	I-25	I-35	I-40	I-40 ON	I-60
FEATURES
Inlet Size	1"	1"	1"	1"	1"
Radius	37' - 71'	47' - 71'	45' - 70'	52' - 76'	50' - 67'
Flow Rate (GPM)	3.8 - 31.5	7.7 - 31.5	7.0 - 28.2	13.0 - 33.7	6.5 - 20.8
Recommended Pressure Range (PSI)	40 - 100	40 - 100	40 - 100	40 - 100	40 - 60
Operating Pressure Range (PSI)	40 - 100	40 - 100	40 - 100	40 - 100	20 - 100
Precipitation Rate (in/hr)	0.4	0.4	0.4	0.4	0.4
Nozzle Trajectory	25º	25º	25º	25º	25º
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	10 ft	10 ft	15 ft	15 ft	10 ft
Nozzle Options	12	12	6	5	6
Warranty	5 Years	5 Years	5 Years	5 Years	5 Years
ADVANCED FEATURES
Automatic Arc Return
Non-Strippable Drive
Part and Full Cirlce in One Model
Headed & Slotted Set Screw
Recalimed Water ID
Available Low Pressure Nozzles
FloStop Control
Available Stainless Steel Riser
Applications
Commercial/Municipal
Athletic Fields
High Vandalism Areas
Low Pressure Areas
Reclaimed Water

Search form

I-25

Quick Specs

This Rugged Rotor Can Stand Up to Any Commercial Job

Product Tabs

I-25 Models Chart

OPTIONS

SPECIFICATION BUILDER (PLASTIC)

SPECIFICATION BUILDER (STAINLESS STEEL)

EXAMPLES

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

Specifications

Rotors Comparison Chart (1")

I-25 High Speed Nozzle
Performance Data