NIBCO Test Cap: 1 1/4 in CTS, Cup, Wrot Copper (MPN 917B 11/4)
SKU 3G-OTH-473623
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Frequently Asked Questions
What is a NIBCO test cap used for?
A NIBCO test cap seals the end of a copper DWV system during pressure testing. It is a temporary fitting that allows plumbers and engineers to verify system integrity before final connection. 3G Electric supplies this genuine NIBCO 917B 11/4 test cap for worldwide delivery.
What are the specifications of the NIBCO 917B 11/4 test cap?
The NIBCO 917B 11/4 test cap is a cup-style, wrot copper fitting for 1 1/4 in CTS (copper tube size) DWV systems. It is designed for drain, waste, and vent applications. 3G Electric sources this genuine NIBCO part for global supply.
Where to buy a NIBCO test cap in worldwide?
3G Electric supplies the NIBCO 917B 11/4 test cap to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this genuine NIBCO DWV fitting.
How to install a NIBCO test cap on copper DWV pipe?
Clean the pipe end and apply flux. Slide the NIBCO test cap onto the 1 1/4 in CTS pipe and heat evenly with a torch until solder flows around the joint. Allow to cool before pressurizing. 3G Electric provides this genuine NIBCO fitting for your project.
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Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO drain, waste & vent wrot copper & bronze tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









