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The CAMPBELL xss5-4t is a stainless steel male adapter fitting designed to connect pipe or tubing of differing sizes within a plumbing or fluid distribution system. It transitions from a 1.25-inch side to a 1-inch side, making it a practical solution for reducing or adapting pipe runs where size changes are required. The stainless steel construction provides corrosion resistance suitable for potable water, light industrial, and general plumbing applications. This fitting is typically installed by licensed plumbers and pipefitters working on residential or commercial systems.
This adapter is suited for use in plumbing systems requiring a male threaded connection between 1.25-inch and 1-inch pipe sizes. It fits into standard pipe assemblies where a threaded male-to-female transition is needed at a size reduction point. The compact dimensions of 1.85 inches in length and 1.65 inches in width allow installation in tight spaces without sacrificing thread engagement or connection integrity.
Designed as an OEM-style replacement or direct-install threaded male adapter for standard 1.25-inch by 1-inch plumbing pipe connections in residential and commercial systems.
This fitting is installed by licensed plumbers in accordance with applicable plumbing codes such as the IPC. Shut off the water supply and depressurize the line before beginning any fitting work. Apply appropriate thread sealant or PTFE tape to threaded connections and hand-tighten before using a wrench to complete the joint. Do not overtighten threaded stainless steel fittings, as this can damage threads or cause galling.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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