Description
Replacement standard ground joint insert NS 29/32 is a spare component designed for laboratory glassware systems that utilise the NS 29/32 ground joint standard. This insert restores proper sealing and connection integrity when the original joint element becomes worn or damaged. Manufactured to match the NS 29/32 taper dimensions, it ensures reliable interchangeability with compatible flasks, adapters and apparatus. Supplied as 1 pc, the part is intended for maintenance of existing assemblies rather than as a standalone vessel. Laboratories performing frequent assembly and disassembly of ground-joint equipment benefit from keeping such replacement inserts on hand. The item from manufacturer Hecht supports continued use of Drechsel-type or similar gas-handling glassware without full apparatus replacement. Correct seating of the NS 29/32 insert maintains leak-tight performance during gas washing, distillation or vacuum work. Simple installation allows quick restoration of functionality in research, analytical and teaching laboratories that rely on standardised ground-joint connections for modular setups.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Type: Replacement standard ground joint insert
- Joint size: NS 29/32
- Function: Spare insert for ground-joint apparatus
- Compatibility: NS 29/32 systems
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about Spare washing bottles head NS 29/32
What is this article?
Spare washing bottles head NS 29/32 is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

