From the product description, check product page for current description, price and availability:

• 25 pack of 1/4 inch flared white washers
• These washers are perfect when fitting a swivel nut into MFL tailpieces as well as MFL disconnects
• Protects against air loss and leaks by preventing metal to metal contact

• Rebuilding & Reconditioning Homebrew Kegs!
• Step by Step: Finding and Fixing Keg CO2 Leaks
• Why Do I Have Bubbles in My Beer Line?
• Checking for Draft System CO2 Leaks – Using The Pressure Gauge Method
• Step by Step: Balancing Your Kegerator Draft System
• Build a Recirculating Draft Line Cleaning Pump
• Building a Simple Ball Lock Draft Line Flushing Setup
• Damp Kegerator? Fix Kegerator Condensation
• What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?
• Hands on Review: Kegland DuoTight Fittings & EVABarrier Tubing!
• Kegerator Foam Problems? – Fight the First Foamy Pint!
• Keg O-Ring Materials Selection – EPDM, Silicone and Buna-N
• Kegerator Beer Line Temperatures & Reducing Foam with a Recirculating Fan
• Food Safe Replacement Keg O-Rings in Bulk
• Upgrade Your Kegerator – 6 Improvements!
• Why Won’t My Homebrew Carbonate? Fixing Beer Carbonation Problems
• Serve Homebrew on Any Kegerator & Convert Commercial Kegerator to Homebrew
• Tips and Gear for Growler Filling
• Tip: Consider Oetiker Stepless Clamps for Kegerator Gas and Beer Lines
• Hands On Review: Inkbird ITC-308 Dual Stage Temperature Controller +WiFi Version
• Universal Poppets Tips and Tricks!
• Convert Your Mark II Keg & Carboy Washer to a Recirculating Draft Line Cleaner
• Kegging CO2 Use Estimations and Calculations
• Home Brew Keg Roundup – New & Used, 5 and 2.5 Gallon & More!
• Portable Draft Beer Serving Options!
• Five Benefits of Using Corny Kegs As Fermenters
• Homebrew Temp Controller Roundup! – Kegerator and Fermentation – con…
• Bulk Keg Orings and Keg Repair Part Numbers