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Stainless Steel KF25 to 5/8" 16mm Barb Fitting
USA LabKF25X58BARBSale $19.95RetailNew Our KF25 to 5/8" 16mm Barb Fitting is constructed with stainless steel for a long lasting, dura -
Stainless Steel KF25 to 3/8" 10mm Barb Fitting
USA LabKF2538BARBSale $14.95RetailNew Our KF25 to 3/8" 10mm Barb Fitting is constructed with stainless steel for a long lasting, dura -
Stainless Steel KF25 to 1/2" 12.7mm Barb Fitting
USA LabKF25TO12BARBSale $14.95RetailNew Our KF25 to .5" 12.7MM Stainless Steel Barb Fitting is constructed to be long lasting and durable. -
USA Lab KF25 Ball Valve
USA LabKF25-BVSale $72.99RetailOur USA Lab KF25 vacuum ball valve is a KF25 High Vacuum Flange to adapt to any other KF25 pump or manifold if needed and is made out of 304 stainless steel with a PTFE seat and seals. -
USA LAB KF25 Right Angle Valve
USA LabKF25RAVSale $119.00RetailOur USA Lab KF25 Right Angle Valve is constructed from premium grade 304 Stainless Steel. It contains Viton Seals for extended usage.
Description
Our USA Lab Air Pressure Release KF25 Valve is a manual operated air admittance vent valve.
The valves are manufactured from SS304
The plunger is sealed onto the O-ring in the valve body
O-ring seal
Maximum leak rate: less than 1x10E-4 Pa
Flange: KF25
Material: stainless steel 304
*Package included: 1 pcs
For Technical Support, Questions, or Other Issues Please Email or Call Us!

Specifications
MPN: |
KF25prv |
Brand: |
USA Lab Equipment |
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.
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.
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.
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.
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.
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.
Questions before you order?
Real people in Livonia, MI. Fast answers, Monday through Friday.
Summaries above are provided for convenience. The full Policies & Warranty Info pages govern all orders and may be updated at any time.