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The MUELLER INDUSTRIES 103-053HN is a brass quarter-turn hose bibb designed for residential and light commercial outdoor water supply applications. It features a ball valve mechanism that opens and closes with a 90-degree handle rotation, making operation fast and straightforward. The inlet is 1/2-inch Male Iron Pipe (MIP) and the outlet is 3/4-inch Male Hose Thread (MHT), which is the standard garden hose thread size. Brass construction provides corrosion resistance and long service life in outdoor plumbing environments. This bibb is typically installed by licensed plumbers or experienced trades professionals at exterior wall penetrations.
This hose bibb is suited for installation on exterior walls of residential homes and commercial facilities where a shutoff-capable outdoor water connection is needed. The 3/4-inch MHT outlet accepts standard garden hoses and compatible spray attachments. The 1/2-inch MIP inlet threads directly into standard supply piping. The quarter-turn ball valve design reduces wear compared to multi-turn compression-style bibbs and provides positive shutoff with minimal handle travel.
Designed as an OEM-style replacement or new-installation hose bibb for residential and commercial plumbing systems with 1/2-inch MIP supply connections requiring a 3/4-inch MHT outdoor outlet.
Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and depressurize the line before removing the existing bibb or making new connections. Apply thread sealant tape or pipe compound to the MIP inlet threads before installation. Do not overtighten the connection, as brass threads can be damaged by excessive force.
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