How to find the right Pipe Fittings & Pipes AI guide

NIBCO: Broad range of copper, PVC and CPVC fittings and valves.
Charlotte Pipe: Major US maker of PVC, CPVC and ABS pipe and fittings.
SharkBite: Push-to-connect fittings and PEX for no-solder repairs.
Uponor: PEX-a pipe and expansion fittings.
Sioux Chief: Hangers, supports and specialty plumbing parts.
Oatey: Solvent cements, primers and plumbing accessories.

Written by an AI model from its trained knowledge.

What the AI looks for in Pipe Fittings & Pipes

Pipe material: Identify the material (copper, PEX, CPVC, PVC, ABS, galvanized steel, black iron) before buying any fitting, clamp, hanger or insulation. Joining methods, cements, hanger spacing and corrosion compatibility all depend on the material.
Sizing system: Copper, PEX and CPVC water lines use copper tube size (CTS). PVC, ABS and steel use iron pipe size (IPS/NPS). The same nominal size has different outside diameters in each system. A 1/2 in copper pipe and a 1/2 in PVC pipe are not the same outside diameter, so parts are not interchangeable.
Potable water certification: Anything that touches drinking water should be marked lead-free (NSF/ANSI 372) and listed to NSF/ANSI 61. Uncertified brass and plastics can leach lead or other contaminants.
Thread standard: US plumbing uses NPT tapered threads. Many imported parts use BSP threads, which look similar but do not seal against NPT. Mismatched threads leak no matter how much sealant you use.

Mixing solvent cements between PVC, CPVC and ABS without a cement rated for that transition.
Joining copper directly to galvanized steel without a dielectric union.
Unbranded brass parts with no lead-free marking on drinking-water lines.

Nominal size is a name, not a measurement. Measure the outside diameter and check whether the pipe is CTS (copper, PEX, CPVC) or IPS (PVC, steel).