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The AQUALINE BCP-050 is a 1/2-inch threaded brass plug designed to cap and seal open pipe ends in plumbing, HVAC, pool, and irrigation systems. Constructed from brass, this plug provides a reliable, corrosion-resistant seal for standard threaded pipe connections. At 0.12 pounds, it is a compact, lightweight fitting suited for use in tight spaces or high-volume service calls where a dependable mechanical seal is required. Licensed plumbers and service technicians keep this type of fitting on hand for capping unused ports, isolating system sections, and completing rough-in work.
The BCP-050 is appropriate for residential and light commercial applications where a 1/2-inch threaded pipe end requires a secure, permanent or semi-permanent cap. Typical use cases include capping unused tee outlets, sealing test ports after pressure testing, and closing off supply lines during system modifications. Its standard thread sizing ensures compatibility with common 1/2-inch NPT pipe fittings found throughout plumbing and HVAC hydronic systems.
Designed as an OEM-style replacement and standard service fitting for 1/2-inch threaded pipe connections in residential and light commercial plumbing and HVAC systems.
Installation is typically performed by a licensed plumber or HVAC technician. Shut off system water supply or isolate the affected section before threading the plug into the open port. Apply thread sealant tape or pipe compound to the male threads before installation to ensure a leak-free seal, and tighten with an appropriately sized wrench. Do not overtighten, as brass fittings can crack under excessive torque.
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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