Stoppers

PP screw cap with Tefzel^® ETFE plug liner and viton O-ring. Leak-proof at recommended maximum speed and rcf for tubes. Suitable for working with aggressive chemicals. The 38mm assembly has a PP shoulder reinforcement ring to prevent collapsing of the 250ml bottles.

Alternative Sealing cap assemblies with silicone seal Nalgene™, PP

Tamper-evident screw caps for Laboratory bottles with DIN thread. Temperature resistance: max. 140°C.
The integral plastic ring tears when the cap is first opened and is retained on the bottle neck. Therefore it can be clearly seen whether the bottle retains its original seal. After first untwisting, can be used as "normal" screw cap.

The DURAN^® TILT Light Shield is a removable white silicone sleeve that covers 94% of the bottle surface. The sleeve blocks damaging ultraviolet light, protects the glass surface from damage, and facilitates safer handling.

The DURAN^® GL 56 Bottle Tags can be used for individual colour coding or for fixing the light shield to the bottle.

DURAN^® bottle top vacuum filtration units for use with the TILT bottle (using an adaptor) or 45 mm media bottles. Manufactured in a Class 100,000 Cleanroom from Class VI non-cytotoxic materials. Supplied sterile.

Re-usable DURAN^® GL 56 filter adaptor allows the use of the TILT bottle with standard 45 mm bottle top filtration units. Manufactured from inert PTFE.

DURAN^® TILT GL 56 self-adhesive cap labels can be used to clearly indicate the separate bottles of media for each cell line, or types of media.

The Matrix™ SepraSeal sealing mats are suitable for securely sealing sample tubes with or without 2D code. For sample access, the caps can be removed with the practical cap removal tool (Cat.-No. 6.254 390, please order seperately) or pierced once. The pre-slit versions are suitable for multiple piercing. The self-sealing function of the pre-slitted elastomer maintains sample integrity.

• For storage down to -20 °C
• Individual closure or closure of 96 sample tubes simultaneously possible
• Good chemical resistance
• Low evaporation rate

With the Matrix™ DuraSeal sealing mat (Cat.-No. 4.658 312), sample tubes are permanently sealed. The sealing mat is pre-slit for sample access and has a v-shaped design. The special elastomer ensures that the integrity of the sample is maintained. Suitable for sample storage down to -80 °C.

Brass, with handles.

Consequently the DURAN PURE premium lip seal cap is particularly suitable for use in the pharmaceutical, chemical and food industries. Due to the integrated lip seal, no further seal is needed to provide tight sealing of the bottles. Therefore it is ideal for storage and transport of sensitive products.

• Made from PFA and available for all GL 45 threads
• Produced and packed under Class 7 Cleanroom conditions
• Exceptional temperature resistance from -196 °C to + 260 °C
• Ideal for dry heat sterilization / depyrogenation
• Very high chemical resistance
• Conforms to FDA 21 CFR Section 177.1550 and USP class VI
• Simple cleanable and autoclavable

Type 163. For particle testing or radiochemical work. For ultrafiltration and sterile filtration. Autoclavable. PTFE-coated, steel screen filter support.

Alternative Glass vacuum filter holders, glass frit Alternative Filter holders, Type 16309

Connecting equipment and fittings with GL threads with hard-walled tubing or tubes made of glass, plastic or metal. Fixing probes, thermometers, dip tubes or cables in reaction vessels. Black screw caps made of PPS, inner parts consisting of a v-ring (PPS), a tapered ring and a sealing ring (both PTFE) as well as an o-ring (FKM) for tubing diameters under 3 mm (not exposed to the medium). Good chemical resistance, the medium is only exposed to PTFE. Temperature resistant from -50 to 250 °C, pressure stable up to 10 bar, suitable for vacuum.
Laboratory threaded joints, GL 14

Cap from PP, membrane made of PTFE with 0.2 µm pore size. Ideal for autoclaving processes because the membrane permits pressure equalisation and tight sealing, reducing the risk of contamination. Temperature resistant up to 140°C. Typical applications: storage or transport of gas generating media, autoclaving of media.

Comprises of 5, 7 or 8 Gukos with an external lower diameter of 12 mm, 17 mm, 21 mm, 27.5 mm, 33 mm, 48 mm, 58 mm and 66 mm each. Hardness 40 Shore A.

Alternative Rubber Spacers (GuKo), natural rubber Alternative Filter rings, rubber