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SKU CTLID
USA Lab
1L Cold Trap Lid
$25.00
In stockReplacement lid for a 1 L cold trap in 3.3 borosilicate glass, with a solid glass knob and a flanged seating rim. Sold as the glass lid on its own – no clamp, gasket or trap body is included. Check the flange diameter against your existing trap before ordering.
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Description
The glass lid for a 1 L cold trap, made in 3.3 borosilicate. It is a flanged lid with a solid glass knob, so it seats onto the matching flange of the trap body and is normally held with a clamp against a gasket or O-ring.
This is a spare or replacement part. The trap body, the clamp and any seal are not part of it, so measure the flange on your existing trap and confirm it matches before ordering.
Specification
- Material: 3.3 borosilicate glass
- Form: flanged lid with a solid glass knob handle
- Intended fit: 1 L cold trap
- SKU: CTLID
Frequently asked questions
What is included?+
The borosilicate glass lid only. SKU CTLID does not include the cold trap body, a clamp, a gasket or an O-ring.
What glass is it made from?+
3.3 borosilicate, as specified by the supplier.
Will it fit my existing cold trap?+
It is listed as the lid for a 1 L cold trap. Because it seals on a flange rather than a taper joint, fit depends on the flange diameter of your specific trap. Measure the flange on your trap and confirm the match with us before ordering rather than assuming that any 1 L trap uses the same flange.
How is it held down?+
By a clamp acting on the flange, against whatever gasket or O-ring your trap uses. The solid glass knob is a handle for lifting and positioning, not a fastening.
Is this a vacuum-rated part?+
No vacuum rating is published for this lid on its own, and a flange seal is only as good as the gasket and clamp used with it. Treat the trap as a system and follow the vacuum rating of the complete assembly, not of the lid in isolation.









