The Large Serviceman's Friend is a must for every service technician (Looking for the small serviceman's friend? You can find it here: http://hvactool.com/products/servicemans-friend-test-adapter-fitting.html) since it is so compact, durable and easy to use. It can be used to connect manometer and gauges to gas supply lines as well as a Whirlpool and several refrigerator supply lines to check pressure. Hose can be used on either end: One end has 1" pipe thread, 3/4" thread, 1/2" thread and 1/4" other end has regular hose fitting and 1/4" straight pipe thread.
• Different thread sizes make connections easy
• Small, durable and economic
• Saves time looking for bushings and fittings
• Rugged solid brass construction
• Adapts hose fittings to pipe threads
• Adapts different size threads simplifying connections