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Bosch GPL3T 3-Point Torpedo Laser Alignment Kit

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Product Overview


The Bosch GPL3T Three-Point Torpedo Alignment Laser is ideal for plumbing, leveling and layout tasks. Its three beams and a patented diamond-cut beam splitter provide exceptional accuracy. The unit is precision-crafted, anodized and machined for durability. It offers wide-ranging functionality, everything from plumbing up floors and ceilings to installing drywall partitions and establishing benchmarks.
Engineered for Precise Results - The Bosch GPL3T provides both left and right 90° beams for flexibility on the job, making it a must-have for any project that requires plumb, level and square point projection. It features a patented diamond-cut beam splitter with a single diode that projects all points for superior accuracy. And with plumb and level point projection, the tool accurately transfers and aligns level, plumb, 90° and grade points. In fact, offering a 100 Ft. range, it's accurate to within 1/4 In. at 75 Ft.
Smart Design for Versatility - The level was designed with precision bubble vials and a leveling base, to ensure exact level. Its V-groove aligns the unit with pipes, for a steady reading. In addition, it features a 0.25 x 20.0 In. tripod mount, alignment shoulders, a position tip and strap slots, so that it can mounted in various places.
  • The patented Diamond-Cut Beam Splitter allows a single diode to project all points for superior accuracy
  • 3-Beams: Plumb, Level, and Square Point Projection accurately transfer and align plumb, level, square, and grade points
  • V-Groove technology aligns the unit with pipes while the bubble vials and laser reference edge keep the tool precise in its measurements
  • Versatile positioning capability thanks to precision bubble vials, leveling base, V-groove, magnets, 1/4 in. x 20 tripod mount, alignment shoulders, positioning tip and strap slots
  • Anodized and machined for superior accuracy and durability
  • Class 2 Laser Product, < 1mW Power Output, Wavelength 635 nm
  • Limited 3-year warranty
  • 3-Point Torpedo Laser Alignment Kit - GPL3T
  • Leveling Base
  • Belt Pouch
  • (3) AAA Cell Batteries


Cordless: Yes
Weight: 1.6 lbs.
Battery Type: AAA
Laser Class: 2
Laser Color: Red
Output Power: <1mW
Wavelength: 635 nm


  • Plumb
  • Transfer
  • Recommendations


    4.1 / 5.0
    36 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Yes, I would recommend this to a friend (24)
    No, I would not recommend this to a friend (2)
    Lightweight (19)
    Ergonomic Design (16)
    Heavy (1)
    Works great!
    I've had this laser level for 3 years years, and had to send it in for warranty at month 11 and received a whole other one that was factory reconditioned but they included another full year warranty! Another 11 months went by and the push button again started acting up so I simply ordered a new push button and we're back in business. Now it's going out again and I'll simply try to see if I can get that push button again. That's the weak link on an otherwise impressive 3 axis torpedo level.
    October 25, 2018
    Originally posted at
    GPL3T awesome product
    I have owned one of these for 12 years, Batteries leaked and had to drill out.
    I was just sick. Used my gun cleaning kit and buffed battery bore.
    Washed out with contact cleaner & it got into laser glasses along with battery acid material. Panicked and bought a new unit.
    Blew out old unit with nitrogen. The day my new unit arrived, I turned on my old unit, Could not believe it / I t was clear as a bell in all directions. Got two awesome levels now!!
    September 2, 2018
    Originally posted at
    one of a kind / doesn't last
    we use these for pipe fitting. They are incredibly helpful, but the switches are terrible! They barley last a year. These cost to much to be a disposable tool!
    July 24, 2018
    Originally posted at
    Great tool but the switch goes bad quickly
    I’ve had a few of these over the past 7 years. I do pipe installation and this tool can be one of my favorites when it works.It is durable but the only downfall to them are the on off switch. They don’t last long and I’ve even tried replacing just the switch which works for a little while but quits working not long after. I would just buy a cheaper brand because until they get this problem fixed.
    July 19, 2018
    Originally posted at
    Very accurate!
    I bought this for a siding project but found it extremely useful on other projects. I completely gutted my kitchen to the floor joists and rebuilt it from scratch starting with this level. It proved to be one of the most valuable tools on the job. I have a very old home, and this level was just what I needed!
    June 20, 2017
    Originally posted at
    It was good while it lasted
    The laser worked well, it did what it was suppose too. But they should have made the laser green instead of red so that it is more visible outside. As someone else said, the case was poorly designed. There is only one square of Velcro that holds the case to your belt, I'm not sure why it wasn't just a sewn loop. I was coming down a ladder and the case came un-velcrowed, falling about 6 foot into the plywood deck underneath me. The lasers didn't work any longer after that. I called bosch and they said there was nothing they could do.
    November 17, 2016
    Originally posted at
    Well built but heavy
    I have recently bought this tool, after seeing it in use with a welder north of Fort McMurray.
    The little I have used it, has been very good.
    But it certainly could do with a lot of weight being removed.
    Maybe skeletonize it where you can please?
    It isn't great for outside or really bright areas inside but is certainly usable.
    As a pipefitter, I often do a lot of work by myself, so every tool that helps me work successfully alone, is a good tool.
    November 16, 2016
    Originally posted at
    Yes, I would recommend this to a friend
    Must have!
    This laser level worked really well for me. Saves a ton of time and is very accurate.
    March 18, 2016
    Yes, I would recommend this to a friend
    Ergonomic Design
    Awesome Find!
    Used this level to do some layout and install of fire sprinkler piping. Awesome for the price!
    November 17, 2015
    Yes, I would recommend this to a friend
    Ergonomic Design
    Awesome Product
    This product is lightweight, user friendly and precise.
    September 18, 2015

    Questions & Answers

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    Browse 1 question Browse 1 question and 1 answer
    where can i get an off on switch for my Bosch GPL3T?
    Michael on Oct 18, 2014
    BEST ANSWER: Please contact Bosch direct @ 1-877-267-2499 for information on parts.

    New Vs. Reconditioned

    What's the difference between New and Factory-Reconditioned?

    Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
    • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
    • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
    • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
    Condition: New Factory Reconditioned
    Features: Same Same
    Specs: Same Same
    Includes: 3-Point Torpedo Laser Alignment Kit - GPL3T,
    Leveling Base,
    Belt Pouch,
    (3) AAA Cell Batteries
    3-Point Torpedo Laser Alignment Kit - GPL3T-RT,
    Leveling Base,
    Belt Pouch
    Availability: Out of Stock Out of Stock
    Warranty: 2 Year Limited 1 Year Limited


    Bosch Laser & Measuring Tools Warranty Robert Bosch Tool Corporation ("Seller") warrants to the original purchaser only, that all Bosch lasers and measuring tools will be free from defects in material or work­manship for a period of one (1) year from date of purchase. Bosch will extend warranty coverage to two (2) years when you register your product within eight (8) weeks after date of purchase. Product registration card must be complete and mailed to Bosch (postmarked within eight weeks after date of purchase), or you may register on-line at

    If you choose not to register your product, a one (1) year limited warranty will apply to your product. 30 Day Money Back Refund or Replacement If you are not completely satisfied with the performance of your laser or optical instrument, for any reason, you can return it to your Bosch dealer within 30 days of the date of purchase for a full refund or replacement. To obtain this 30-Day Refund or Replacement, your return must be accompanied by the original receipt for purchase of the laser or optical instrument product. A maximum of 2 returns per customer will be permitted.