1-1/2 Inch NPT Male Outer Square Head Socket Pipe Plug Fittings, 304 Stainless Steel Thread Adapters, Heavy Duty 3 Pack For DIY Plumbing, Industrial Installations, And Home Projects

Durable 1-1/2" NPT Square Head Stainless Pipe Plugs, 3-Pack
✔️ 304 stainless steel, 225 PSI max, 1-1/2" NPT male square

This 3-pack set features heavy-duty, 304 stainless steel 1-1/2" NPT square head pipe plugs designed to seal off unused pipe ends. They’re ideal for DIY plumbing, automotive, and industrial installations, offering corrosion resistance in water, oil, and gas lines.

✅ 304 stainless steel construction for corrosion resistance
✅ NPT 1-1/2 inch male thread with 60° taper
✅ Square head design for easy tightening
✅ 225 PSI max working pressure; -65°F to +250°F temp range
✅ Includes 3 plugs per pack and Teflon tape
✅ 60° tapered NPT threads standard US fittings

💡 What is a common use for a 1-1/2 inch NPT square head pipe plug in mechanical systems?

This handy plug helps seal unused ports in engines, pumps, manifolds, and other piping.

- Seals water, oil, and gas passages to prevent leaks
- Blocks off ports during maintenance or testing to simplify work
- Compatible with standard US NPT threads and 304 stainless steel
- Designed for reliable performance from -65°F to 250°F and up to 225 PSI