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Mini Sight Glass Assembly

With Interchangeable End Connections

Sight Glass (Mini)

Mini Sight Glass

The long awaited customizable mini sight glass is finally here. The ideal solution for inline reading of fluid flow, color, or opacity; using NPT or JIC fittings. Or, if reading a Tri-Clamp port coming off of a tank or pressure vessel, then transitioning to a JIC or NPT hose. We offer 8 connection options to fit your needs. We also use standard 3/8" Tri-Clamp Gaskets to seal the glass inline, so if your process needs more chemical resistance, changing from a Silicone to an FKM gasket is a simple switch. The high quality borosilicate gauge glass has a through bore of 5/16", maximizing the connection options and visibility, while being short enough to not drastically affect fluid flow from its bore size.

The Sight Glass Assembly - Instructions

To build a complete sight glass you will need to Add to Cart the 3 main components:

  • The Core Case + 3/4 in. Glass Tube
  • Two (2) 3/8 inch gaskets of your choice (FKM, Silicone)
  • Two (2) sight glass ends (SGM-END-xxxx) of your choice (same or different).


  • 1 x SGM-CORE-G075-003 (case + glass)
  • 2 x 42MPSFY-0375-FDA (2 x FKM gaskets)
  • 1 x SGM-END-GFN6 (female NPT)
  • 1 x SGM-END-GMJ6 (male JIC)

12 Items

Set Descending Direction
per page
SKU Item Price
42MPSFY-0375-FDA FKM Gasket | Tri Clamp 3/8 in. (fits Sight Glass Mini) - FDA
SGM-CORE-G075-3-GLASS Sight Glass Mini | Core - Cage Body + Glass - SS304
SGM-END-NPT-GFN4 Sight Glass Mini | End - Female NPT 1/4 in. - SS304
SGM-END-NPT-GFN6 Sight Glass Mini | End - Female NPT 3/8 in. - SS304
SGM-END-JIC-GMJ4 Sight Glass Mini | End - Male JIC 1/4 in. - SS304
SGM-END-JIC-GMJ6 Sight Glass Mini | End - Male JIC 3/8 in. - SS304
SGM-END-NPT-GMN4 Sight Glass Mini | End - Male NPT 1/4 in. - SS304
SGM-END-NPT-GMN6 Sight Glass Mini | End - Male NPT 3/8 in. - SS304
SGM-END-TC-G100 Sight Glass Mini | End - Tri Clamp 1 in. - SS304
SGM-END-TC-G075 Sight Glass Mini | End - Tri Clamp 3/4 in. - SS304
SGM-HW-GLASS-075-3 Sight Glass Mini | Glass Replacement - 3/4 in. x 3 in.
42RXPX-0375-FDA Silicone Gasket | Tri Clamp 3/8 in. (fits Sight Glass Mini) - FDA

12 Items

Set Descending Direction
per page

Return Policy

Glacier Tanks will accept returns of website standard stocking items, but only if:

  1. The item is new, unused, and in resalable condition;
  2. You notify Glacier Tanks and request a return authorization within 30 days of your receipt of the item;
  3. You return the item to Glacier Tanks, postage/shipping prepaid within 5 days of Glacier Tanks' return authorization (RMA);

Once your items have been received by Glacier Tanks and verified to be unused, we will refund your purchase price, less shipping costs. Returns will incur a 15% restocking fee. Return shipping costs are your responsibility and shall not be paid by Glacier Tanks.

The following items are non-returnable:

  • Special or Discounted items - labeled by button color:
    • Discontinued
    • Damaged
    • Non-conforming
    • Refurbished
    • Special Order
    • Drop Ship
    • Build-to-Order
  • Custom order
  • All Gaskets & Seals

Please be sure you understand and agree to any drawings supplied to you prior to purchase of custom or special order items. Payment of deposits for custom or special order items indicates your approval and acceptance of such custom or special order items.

Proudly Serving Our Customers

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Missouri Ridge Distillery & Brewery Missouri Ridge Distillery & Brewery
Mar 14, 2021 on Google Customer Reviews
Fair prices and fast shipping!!!! What else can you ask for..... Greg Pope Master Distiller
Edward Barcenas Edward Barcenas
Nov 15, 2020 on Google Customer Reviews
Excellent. Delivery was on time. Properly packaged. The website is easy to navigate and it has the necessary technical data.