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Large Sight Tee Kit NO Thermometer
Large Sight Tee Kit NO Thermometer

Our Price: $23.00

Quantity in Stock:537

Product Code: LTSNT

Sightglass Decals:

Sight Glass Length:

If you already have a 1/2" NPT coupling welded into your kettle (or plan to), this sight glass kit will give you a sight glass and still retain your original 1/2" NPT female port on the open end of the tee. You can thread in your own thermometer as long as it has a 6" probe or may be you want to thread in a digital controller temp probe. However, we do NOT recommend trying to hang a ball valve off of the tee for draining purposes.


  • 19" Polycarbonate Tubing rated to 250F threaded into a stainless bushing (model SB kit). The tubing will exend approximately 20.5" above the centerpoint of your welded in coupling). If you need a longer length for larger vessels, you can specify a 24" tube on the custom page or contact up for longer lengths.
  • 1/2" NPT SS Tee
  • 1/2" close nipple (goes between the tee and your welded in coupling)
  • Black Vinyl Numbers for each gallon mark from 2 to 15.(5-50 liter also available, see options)
  • 1/4" x 4" SS eyebolt (for securing the top)

Note: standard length is 19" and these are the ones that are in stock and ready to ship right away. Extended lengths of 24 and 36" may incur 2-4 days of additional lead time.

Install Requirements:

This kit requires that you already have a 1/2" coupling installed in the lower sidewall of your vessel (or want to have one welded in) presenting 1/2" NPT Female threads externally.If you don't already have one to weld in, you can buy one here. An alternative to welding in a coupling is to silver solder a 1/2" welding spud though we don't specifically provide support for how to do this.
Put a few turns of teflon tape on the threads of the close nipple before threading the tee assembly in to your coupling.
After the tee is installed with the side port facing up, thread in the bushing/sight tube and thermometer putting a few turns of teflon tape on each.
Secure the tubing upright at the top of your pot by installing a stainless eyebolt.

Calibration Instructions:

1. Level the vessel, apply a vertical piece of masking tape to the side of the tube, and add a carefully measure gallon of water at a time noting each gallon on the tape. Empty the vessel and remove the sight glass. Cut the number strip into individual numbers, remove the rigid paper off the number, apply at the correct level on the tube. Remove the clear top masking leaving ONLY the black vinyl number behind. (It's probably better to view the video to get this). If you are adventurous, you can apply the decals directly to the sight glass while calibrating the level, but we find it's much easier to get a clean straight application with the tube laying down horizontally.

2. If you make a mistake applying the vinyl numbers, you should be able to scrape them off with your fingernail without damaging the tubing. However, do NOT use any solvents or adhesive removers except for rubbing alcohol on a paper towel and some elbow grease. Unfortunately if this happens, you'll have to buy another strip of numbers.


If after initial installation you find the tubing is sticking up past the top of the vessel, you may want to trim it flush to make it look better and avoid snagging.

1. Mark the cut line with a sharpie marker or piece of tape. WARNING, if you are using tape to mark the cut line, be sure to note which edge represents the cut line or you may cut the tubing short by whatever the thickness of the tape is.

2. Remove the kit from the vessel, laying the tubing down on a piece of cloth to avoid scratching, and cut the tubing with a hack saw or other fine-toothed trim saw. You can also use a tubing cutter designed for copper pipe to make a score cut around the tubing and then snapping it.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 4 Click Here to Write a Review »

  0 of 0 people found the following review helpful:
5 of 5 July 22, 2018
Reviewer: Verle Johnson from Beavercreek, OH United States  
Awesome quality,  As advertised performance.

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  0 of 0 people found the following review helpful:
5 of 5 Great product February 13, 2016
Reviewer: Andrew Martin from Pullman, WA United States  
You're doing a great job!
Keep up the good work.
Love the product selections and will continue to be a customer!

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  0 of 0 people found the following review helpful:
4 of 5 top quality January 17, 2015
Reviewer: Jonathan Meeker from VISALIA, CA United States  
Items orderd here are always top quality. Return and refer often.

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  0 of 0 people found the following review helpful:
5 of 5 Large Sight Tee Kit December 8, 2014
Reviewer: Anonymous Person from Collegeville, PA United States  
Excellent high quality product.

Bobbie gives great customer service and answered all my product questions.

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