Built-in in-stem pressure regulation
Maximum nozzle efficiency regardless of inlet pressure

Heavy-duty body and cap construction
Multi-thread buttress design withstands the harshest environments

Pressure activated, multi-function, no flow-by wiper seal
Easy to remove and clean; treated with UV inhibitors to ensure long life

Compatible with All Female Threaded Nozzles
Accepts adjustable, fixed and specialty nozzles from Hunter and all major brands

Optional factory-installed drain check valve for up to 10 feet elevation change
Eliminates landscape damage from flooding and erosion

Ratcheting riser for quick arc alignment
Make adjustments while sprinkler is operating

Heavy-duty spring
For positive retraction under any conditions

Innovative pop-top flush plug design
Allows limited flow permitting controlled directional flushing

1/2" standard side inlet on 6" and 12" models
Installation convenience for deep seated bodies

• INSTITUTIONAL SPRAY MODELS
  INST-00 – Shrub
  INST-04 – 4" Pop-up (10 cm)
  INST-06 – 6" Pop-up (15 cm)
  INST-12 – 12" Pop-up (30 cm)
  
  DIMENSIONS
  • Overall height:
  INST-04 – 5 7⁄8" (15.5 cm)
  INST-06 – 8 3/4" (22.5 cm)
  INST-12 – 16 1⁄8" (41 cm)
  • 1/2" female inlet NPT
  • Exposed diameter: 2 1/4" (5.7 cm)
  
  OPERATING SPECIFICATIONS
  • Recommended pressure range: 15 to 100 PSI (1.0 to 6.9 bars; 103 to 689 kPa)
  • Flow-by: 0 at 10 PSI (.7 bars; 68 kPa) or greater; .1 GPM (0.02 m3/hr; 0.4 l/min) otherwise
  • Precipitation rates: approximately 1.5" (38 mm) per hour
  
  OPTIONS AVAILABLE
  • Factory-installed drain check valve for up to 14' (4.3 m) elevation change;
  “Check Valve” stamped on cap for easy identification
  • Field-installed drain check valve (part # 437400)
  • Field-installed black rubber cover (part # 469805)
  • Field-installed reclaimed water identification snap-on cover (part # 469800)
  • Field-installed reclaimed water identification body cap (part # 458530),
  with “Check Valve” stamped on top for easy ID (part # 458535)
  • Field-installed vandal-proof cap (part # INST-VPC)
  • Field-installed check valve (part # 437400)
  
  
  
• SPECIFICATION GUIDE
  EXAMPLE: INST - 06 - CV - 15H
  MODEL INST = Institutional Spray (Includes Factory- Installed Pressure Regulator)	POP-UP HEIGHT 00 = Shrub 04 = 4" Pop-up 06 = 6" Pop-up 12 = 12" Pop-up	OPTIONS CV = Factory-Installed Drain Check Valve (Pop-up Models Only) CV-R = Factory-Installed Reclaimed Body Cap	NOZZLE SERIES 8 = 8 Series 10 = 10 Series 12 = 12 Series 15 = 15 Series 17 = 17 Series*	PATTERN A = Adjustable Q = Quarter-Circle H = Half-Circle F = Full-Circle

  Note: Bodies and nozzles sold separately. Also compatible with Hunter's bubbler and specialty nozzles.
  * 17 Series available in Adjustable, Quarter, and Half-Circle patterns only.

xceptional strength, innovative features…just the

need for high traffic areas. Features like a positiveseal

flush cap with an innovative pull-up design

that keeps debris out. A high quality, multi-functional,

pressure-activated wiper seal. True pressure regulation

under a wide range of environmental and pressure

conditions to reduce water waste. An in-stem regulator

that acts as a flow control device if the nozzle is removed.

A super heavy-duty check valve assembly that eliminates

the potential liability issues of low head drainage. The

most powerful retraction spring in its class. Sounds like

a lot in a spray sprinkler? How about one more great

feature–just like all other Hunter Institutional Series

™