Boshart BC No-Lead Brass Compression Union Fitting

Boshart BC No-Lead Brass Compression Union Fitting

The Boshart BC is a no-lead brass compression union built for rough-in plumbers who need a reliable mechanical joint on low to medium pressure lines. This compression fitting is designed for use with copper, brass, aluminum, plastic, CPVC, and PEX tubing, making it a versatile connector for gasoline, grease, oil, water, vacuum, and air line applications behind the wall or under the floor. The BC union is available across a range of sizes from 1/4" up to 5/8" x 3/8", including 1/2 x 3/8", 1/4", 3/8", 3/8 x 1/4", 5/8 x 3/8", and 5/8" configurations, so plumbers can match the fitting to the tubing size on hand without switching connection systems. Constructed from no-lead brass, the union delivers a corrosion-resistant, code-aware connection point for tubing runs where a serviceable, non-permanent joint is preferred over a soldered or solvent-welded connection.

Key Features

• Size Range: Offered from 1/4" through 5/8" x 3/8", covering straight and reducing size combinations for common tubing transitions.
• Durable Construction: No-lead brass body resists corrosion and is suitable for the tubing materials it is rated to join.
• Compression Connection: Mechanical compression joint allows quick installation and future disassembly without soldering or solvent welding.
• Broad Tubing Compatibility: Compatible with copper, brass, aluminum, plastic, CPVC, and PEX tubing for flexible rough-in use.
• Multi-Media Rated: Suitable for gasoline, grease, oil, water, vacuum, and air line applications at low to medium pressure.
• Vibration Resistance Tip: Use of a long nut is recommended in installations subject to vibration for added holding resistance.
• No-Lead Compliance: Manufactured to a no-lead brass specification for applicable potable-adjacent rough-in use.

Technical Specifications

• Country of Origin: China
• Packaging: 25 ea
• Prop 65 Warning: Lead
• Available Sizes: 1/2 x 3/8", 1/4", 3/8", 3/8 x 1/4", 5/8 x 3/8", 5/8"

Typical Applications

• Rough-In Water Supply Line Connections
• Vacuum and Compressed Air Line Fittings
• Fuel, Grease, and Oil Line Connections
• Copper, CPVC, and PEX Tubing Transitions
• Residential and Commercial Plumbing Rough-In

Why Boshart?

Boshart supplies no-lead brass compression fittings built for the demands of professional rough-in plumbing work, where a dependable mechanical connection matters as much as material quality. The BC union's no-lead brass construction and broad tubing compatibility make it a practical choice for plumbers and contractors working across copper, plastic, CPVC, and PEX tubing systems on the same jobsite. With sizes spanning 1/4" to 5/8" x 3/8" and packaging of 25 per case, it's sized for stocking trucks and supply houses that need a dependable compression union on hand for a wide range of low to medium pressure applications.