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Underhill Traveling Sprinkler | T-400-Tracker

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Sale Price $3,007.20
Our Price $5,512.50
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The Tracker offers a very economical solution for supplementing seasonal watering needs of 1/4 acre to 2 acre areas. It is also ideal for irrigating athletic fields, cemeteries, golf course roughs, or other large areas where an underground system is impractical. Built to last with precision German engineering and high quality materials, this portable powerhouse can irrigate an entire football field in just two passes.

Tracker requires minimal labor to operate. Powered by water, it pulls itself along a nylon cable, dragging up to 360 ft. of 1 in. reinforced heavy-duty hose (sold separately). Each pass irrigates about 2/3 acre per 8 hours of operations.

Watering Guide

Maximum Field Size

The area which can be irrigated by the Tracker depends on the weather (temperature and supplemental rainfall) and the time available for watering. Well-fertilized, healthy grass requires approximately 0.35" (9 mm) of water daily during the hottest time of the year, and about half of that during the cooler seasons.

The #7 (15 GPM) sprinkler nozzle is supplied with the Tracker™ to accommodate watering requirements. The Tracker™ can drag up to 360 ft. (110 m) of hose allowing a maximum irrigated length of 400 ft. (122 m). The width of a travel lane is typically 70 to 85 feet (21 to 25 m). As a guideline, the Tracker™ will water about 2/3 acre (2,760 m2) in 8 hours.

Water Source

The Tracker requires at least 9 GPM (34 l/min) at 50 psi (3,3 bars), which is typically available from 1" (25 mm) or larger pipeline. Larger areas may require up to 15 GPM (57 l/min) at 85 psi (5,4 bars).

Features & Benefits

  • Adjustable Speed Control: 20-70 ft./hr.
  • 360 ft. nylon cable provides maximum irrigated length of 400 ft.
  • Standard full or part circle sprinkler (8-15 GPM)
  • 70 - 85 ft. pass width
  • Automatic shut-off at end of pass
  • Galvanized anchor stake
  • Water turbine drive and gear box
  • Includes 1" brass quick-connect adapter


  • Weight: 58 lbs.
  • Size: Length 33", Width 22", Height 22"
  • Materials: Aluminum, Brass, ABS
  • Hose Required: 1"
  • Minimum Water Pressure: 50 psi
Product Type:
Hose Sprinkler
Average Rating:
5 Stars, 4 Stars , 3 Stars , 2 Stars , 1 Star
5.0 / 5.0
1 Review
5 Stars
4 Stars
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1 Star
Just got it… works great!We haven’t found any flaws yet. Sure makes life easy.
June 3, 2018
over 2 years ago
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Browse 8 questions Browse 8 questions and 2 answers
Can I buy a replacement sprinkler nozzle for the tacker T-400?
tony l on Apr 19, 2016
What type of problems has this machine encountered?
A shopper on Jun 15, 2012
Are there any videos for the T-400 Tracker Traveling Sprinkler in action available?

Thank you!
Kevin on Feb 5, 2013
if my well produces 5.5gallons per minute, will this sprinkler work?
jake t on Apr 17, 2012
BEST ANSWER: Jake, Yes this model sprinkler will work but the throw will be much shorter than what I get. My swath is about 70 feet (35 foot radius). You might consider a larger pump, since the travel is dependent on the volume of water flowing thru the turbine. I get 300 feet in about 4 hours, but if time is not a problem (like at night), you can take advantage of the auto shut-off and move the machine at your leisure. I like the machine so much, that I invented a bracket that spreads water in a "flood" pattern to get around the problem of the wind blowing away half of the water. The swath is only 20 feet, but all the water goes on the ground. Hope this helps, Norm
Will this unit work if I have 1000' of 1 1/4" main line ?
A shopper on Mar 27, 2017
I have 55# water pressure and 1000" of main line, is this sufficient ?
Jim on Mar 27, 2017
Is the sprinkler head adjustable downward?
A shopper on Nov 3, 2016
How big are the wheels?
A shopper on Oct 10, 2016