K29 Vacuum Mixing Stopper

Description

The Larger Joint, the Same Sealed Stirring

Bigger flasks carry TS29 joints, and reduced-pressure work in them needs the same sealed agitation as their smaller counterparts. This stopper brings the patented fin seal to 29/42 glassware.

How the Seal Works

• The joint: Twelve thin Teflon fins compress against the TS29 glass taper, sealing without grease
• The shaft: A Teflon cup seal in a gland packing arrangement, riding an O-ring, seals the rotating shaft
• The result: Reduced-pressure stirring for distillation, degassing, and air-sensitive work at larger volumes

Keep It Sealing for Years

Gland seals are replaceable in a four-pack, and internal parts are available separately. Backed by our One-Year Total Care Warranty covering parts, labor, and specification compliance.

Working in TS24 glassware? The K24 Vacuum Mixing Stopper is the same patented seal sized for 24/40 joints.