A press tool can work with copper, multilayer, and steel press fittings, but only if you match the fitting system with the correct jaw profile and size. This guide shows what really matters, what to check on site, and where to find the right MGFtools categories for tools, jaws, pipe prep, and final pressure testing.

Checking a system for leaks before covering it up is one of the most important steps in professional plumbing and HVAC work. Once pipes are inside walls, floors, or concrete, any leak becomes expensive, time consuming, and damaging. A proper pressure test gives you proof that the system is tight and reliable before it is hidden from view.This article explains how professionals check systems for leaks, which methods work best, and which tools help you do the job correctly and efficiently.