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

Comes with a back nut, plastic collar, hex nut, and a 1/4″ barb. Requires a 1″ hole saw for installation. When set in place, the shank will only have about 2 1/8″ of length to pass through your wall or fridge door, due to the length of the collar and back nut.

Installation note: On a fridge there is generally no coolant lines running through the door but please check to see there are no lines connecting the door and the rest of the refrigerator. To test for coolant lines on a freezer start with a warm freezer then plug the unit in with the lid open. You should be able to see the lines form condensation on the inside of the freezer where there are lines running. Please still use caution when drilling.

Dimensions:

5 1/8″ Total Length
4″ Length Without Barb
2 1/8″ Length Between Collar and Back Nut

• Commentary: Pin Lock Keg Pricing and Availability
• Check Your CO2 Regulator for Leaks!
• How to get a keg ready for first use? New Keg Cleaning and Prep
• Portable Draft Beer Serving Options!
• Pin Lock Keg Pricing and Availability
• The Most Difficult Spot to Check for CO2 Leaks
• Keg O-Ring Materials Selection! – EPDM, Silicone and Buna-N?
• Why Do I Have Bubbles in My Beer Line? Diagnosing and Fixing Kegerator Foam Problems
• Five Benefits of Using Corny Kegs As Fermenters
• Rebuilding & Reconditioning Homebrew Kegs!
• Food Safe Replacement Keg O-Rings in Bulk
• Hands on Review: Kegland DuoTight Fittings & EVABarrier Tubing!
• Why Won’t My Beer Carbonate? Fixing Draft Beer Carbonation Problems
• What Does a Flow Control Faucet Do?
• Upgrade Your Kegerator – 6 Improvements!
• Serve Homebrew on Any Kegerator & Convert Commercial Kegerator to Homebrew
• Tips and Gear for Growler Filling
• What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs?
• Checking for Draft System CO2 Leaks – Using The Pressure Gauge Method
• 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 Cleaning Pump!
• Step by Step: Finding and Fixing Keg CO2 Leaks
• Kegerator Temperature Probe Placement – To Immerse or Not To Immerse? – three tests to determine optimal pla…
• Kegerator Beer Line Temperatures & Reducing Foam with a Recirculating Fan
• Kegging CO2 Use Estimations and Calculations
• Balancing Your Kegerator Draft System
• Building a Simple Ball Lock Draft Line Flushing Setup
• Build a Recirculating Draft Line Cleaning Pump
• Home Brew Keg Roundup – New & Used, 5 and 2.5 Gallon & More!
• Damp Kegerator? Fix Kegerator Condensation
• Homebrew Temp Controller Roundup! – Kegerator and Fermentation – concepts, applications and models
• Bulk Keg Orings and Keg Parts Reference