Description

USA Lab KF25 to PTFE Adapter

The USA Lab KF25 to PTFE Adapter is designed to connect compatible glassware to a KF25 vacuum connector. Its thick PTFE construction provides a durable adapter interface for laboratory vacuum applications.

A Viton gasket is included with the adapter to help provide a sealed connection between compatible components. The adapter is available for multiple glassware joint sizes, including 24/40, 29/42, and 34/45 configurations.

With multiple inner and outer diameter configurations, the USA Lab KF25 to PTFE Adapter provides a practical connection solution for integrating compatible glassware with KF25 vacuum systems.

KF25 Vacuum Connection PTFE Construction Viton Gasket 24/40, 29/42 & 34/45 Models

PTFE Construction: Thick constructed PTFE provides the adapter body for compatible laboratory vacuum connections.

Viton Gasket: Includes a Viton gasket to support a sealed connection during vacuum use.

Multiple Glassware Sizes: Available in 24/40, 29/42, and 34/45 configurations with specified inner and outer diameters.

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Why this USA Lab KF25 to PTFE Adapter?

KF25 vacuum connection — designed to connect compatible glassware to a KF25 connector for vacuum applications.
Thick PTFE construction — provides the adapter body for laboratory vacuum connection applications.
Viton gasket included — supports a sealed connection between compatible components.
Multiple glassware configurations — available for 24/40, 29/42, and 34/45 glassware models.
Multiple dimensional options — each model provides specified inner and outer diameter dimensions for configuration selection.

Talk to an expert

Get product guidance, application support, and compatibility information for your laboratory vacuum setup.

Call 734-855-4890

Technical Specifications

Specification	Details
Product Name	USA Lab KF25 to PTFE Adapter
Product Type	PTFE Adapter
Vacuum Connection	KF25
Adapter Material	PTFE
Gasket Material	Viton
Glassware Model	24/40
24/40 Inner Diameter	1.28 cm
24/40 Outer Diameter	2 cm
Glassware Model	29/42
29/42 Inner Diameter	1.47 cm
29/42 Outer Diameter	2.4 cm
Glassware Model	34/45
34/45 Inner Diameter	2 cm
34/45 Outer Diameter	3 cm
Available Models	24/40, 29/42, 34/45
Glassware Compatibility	Compatible glassware with 24/40, 29/42, or 34/45 model sizing
Application	Laboratory vacuum connection
Connection Function	Connects compatible glassware to a KF25 vacuum connector
Seal Component	Viton gasket

Popular Industries & Use Cases

Botanical Extraction Pharmaceutical Processing Chemical Processing Laboratory Research

Business Solutions & Procurement

Programs & Terms

Exclusive options for businesses and academics.

Apply for Net Terms Academic Discount

Documentation & Compliance

Keep purchasing streamlined and compliant.

Request a Quote Tax Exemption

Custom Solutions

Tailored equipment and integration help.

Custom Request Consulting

Talk to Sales

We’ll help identify the right adapter configuration for your laboratory vacuum setup.

Call 734-855-4890 Email Sales/Support

FAQ

What is the USA Lab KF25 to PTFE Adapter designed for?

The USA Lab KF25 to PTFE Adapter is designed to connect compatible glassware to a KF25 connector for laboratory vacuum applications.

What material is the USA Lab KF25 to PTFE Adapter made from?

The adapter is constructed from thick PTFE and includes a Viton gasket for the connection.

What glassware models are available for the USA Lab KF25 to PTFE Adapter?

The USA Lab KF25 to PTFE Adapter is available for 24/40, 29/42, and 34/45 glassware models.

What are the inner and outer diameters of the available models?

The 24/40 model has a 1.28 cm inner diameter and 2 cm outer diameter. The 29/42 model has a 1.47 cm inner diameter and 2.4 cm outer diameter. The 34/45 model has a 2 cm inner diameter and 3 cm outer diameter.

Important Shipping Notice!

DISCLAIMER:

All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.

Need Support?

We’ll get you answers fast.

Call 734-855-4890

Specifications

Brand:	USA Lab
Material:	PTFE

Warranty

Fittings and steel do NOT carry any warranty. Fittings and steel items with a defect or other issue must be identified within 30 days of arrival and USA Lab MUST be contacted. After 30 days, there will be no replacements sent for fittings or steel items with a defect or issue. Cross threading, misuse, improper storage, or improper care of fittings/steel are considered user error and are not covered under warranty.

Shipping & Returns

1–3 Business Days Standard Processing

Return Policy ↗ Varies by Product Warranty Policy ↗ Varies by Product

3 Days to Claim Inspect on Arrival

Shipping

Orders ship within 1–3 business days after payment clears. We ship Monday through Friday via UPS, USPS, and freight carriers.
Freight items (crated, hazmat, dropship, or special packaging) can take 1–5 business days to ship.
Expedited shipping speeds up transit, not processing. Contact us for true rush orders.
PO Box addresses ship USPS. Alcohols, chemicals, and hazmat cannot ship to a PO Box.

Full Shipping Policy

Delivery & Damage Claims

Inspect every shipment on arrival. Claims must be filed within 3 business days.
Visible damage? Refuse the delivery and have the driver document it. We will file the claim and ship a replacement.
Concealed damage: contact us within 2 days with photos of the packaging and item. Keep all packing materials.
Freight services (liftgate, residential, inside delivery) are the customer's responsibility to select for their location.

Damage & Freight Details

Returns

USA Lab branded products are returnable within 30 days of order date with prior authorization. Email us before sending anything back.
Solvents, chemicals, and consumables are not returnable once shipped. Custom and made-to-order items are final sale.
Unused items in original packaging carry a 15% restocking fee. Defective items ship back on us.
Items showing any signs of use, wear, contamination, or modification are not eligible for return.
Glassware damage must be reported within 3 business days of delivery for replacement or refund.

Full Return Policy

Custom & Made-to-Order Items

Customized and made-to-order products are final sale and not eligible for return under any circumstances.
This includes ductless fume hoods, configured tanks and reactors, and any item built to your specifications.
These products are manufactured specifically for your application. Confirm sizing, voltage, and configuration with our team before ordering.
Damage claim coverage still applies. Inspect on arrival and report issues within 3 business days.

Return Eligibility Details

Warranty

USA Lab products are covered against manufacturing defects for up to 3 years, depending on product line.
1 year: chillers, heaters, rotovaps, reactors, vacuum ovens, mixers, and most equipment. 2 years: UVP vacuum pumps. 3 years: scientific freeze dryers.
Wear items (glassware, gaskets, heating elements, sensors) and fittings/steel are not covered. Report defects within 30 days (3 days for glass).
Non–USA Lab brands are covered by their manufacturer's warranty. See the product's Warranty tab.

Full Warranty Policy

International Orders

Import duties, taxes, VAT, and brokerage fees are not collected by USA Lab and are the receiver's responsibility.
Verify your country's customs charges and import restrictions before ordering.
Refused or unclaimed international shipments are refunded minus shipping and a 15% restocking fee.
International orders are generally non-returnable. Damaged items must be reported within 3 business days.

International Guidelines

Questions before you order?

Real people in Livonia, MI. Fast answers, Monday through Friday.

Call 734-855-4890 Contact Us

Summaries above are provided for convenience. The full Policies & Warranty Info pages govern all orders and may be updated at any time.

For Business

Custom

Support

USA Lab KF25 to PTFE Adapter

Resources & Downloads