Ask a research-administration question
Answers are drawn from CASRAI and the rest of the CASRAI corpus, with a link to every source.
Answers are AI-generated from CASRAI’s own published pages and can be wrong, so check the linked sources before relying on one; your question is logged without personal data — never sold, never used to train a third-party model — to show us what CASRAI is missing, so please do not type personal or confidential details. How we use this
CASRAI is the reference for research administration — bookmark it for the next question.

USA Lab
Sanitary Short Sight Glass Replacement Gaskets - 1.5", 2", 3", 4", 6" & 12"
in Gaskets
$20.00 - $70.00
In stockPrice varies by Size.
Replacement gaskets for sanitary short sight glasses, in 1.5, 2, 3, 4, 6 and 12 in. Made for products only.
Choose Size to continue.
Buying through procurement?
Generate a formal quotation for 1 × this item, plus our W-9 — everything your finance department needs to raise a purchase order.
Choose Size to continue.
Description
The sanitary short sight glass gaskets are made for products only. The replacement gaskets may not fit other brands sight glasses. Please refer to the measurements chart to ensure these will fit your sight glasses!
Measurements
Size (TC)
Inner Diameter (ID)
Outer Diameter (OD)
1.5″
1.5″ (in)
2″ (in)
2″
2″ (in)
2.6″ (in)
3″
2.8″ (in)
3.75″ (in)
4″
4″ (in)
4.9″ (in)
6″
6″ (in)
7″ (in)
12″
12″ (in)
13″ (in)
Frequently asked questions
What sizes are available?+
1.5 in, 2 in, 3 in, 4 in, 6 in and 12 in.
Will they fit another brand's sight glass?+
The product data states these gaskets are made for USA Lab products only and may not fit other brands' sight glasses.
Related products

Buna-n Gasket with 2500 Mesh (5 Micron) - Various Sizes
Buna-N (nitrile) Tri-Clamp gasket with a 2500 mesh (5 micron) screen bonded in, for closed loop systems handling butane and propane.

Buna-n Gasket with 150 Mesh (100 Micron) - Various Sizes
Buna-N Tri-Clamp gasket with a 150 mesh (100 micron) screen bonded in, chosen for closed loop systems for its resistance to butane and propane.









