NPT Thread Caps and Plugs - 1/4, 3/8, 1/2, 3/4, 1"

Update 8th of April 2026: Added 2" NPT cap and plug

Update 22nd of March 2026: Added 2-½" cap and plug

Update 21st of February 2026: Added 1-½" and 1-¼" caps and plugs. 

Update 6th of February 2026: Added 1/8" cap and plug. 

 

NPT (National Pipe Taper) thread caps and plugs in the most common sizes - ¼", 3/8", ½", ¾" and 1". Wrench ready for easy usage. 

Let me know if you need other sizes and I will add them too.

 

For the BSP/BSPP thread model check HERE - round outer profile or HERE - for wrench outer profile.

 

0.12 mm layer height for good threads

3 wall loops for shrength - adjust as needed. 

All plugs have a pocket for rubber seal. Add it if you are expecting preasure. 

 

 

Check out more of my garden related models HERE

 

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