PB Motor Tech BMT 3-Way Brass Manifold Gauge — R134A/R12/R22/R502, 3 hoses & sight glass

The PB Motor Tech BMT 3-way brass manifold gauge is a portable, heavy-duty refrigeration diagnostic and charging tool compatible with R134A, R12, R22 and R502 systems.

This professional manifold gauge set combines robust brass construction, large easy-to-read dials, a sight-glass for refrigerant inspection and three color-coded hoses to streamline air-conditioning service, diagnostics and refrigerant charging on cars and home systems. Built for frequent use, it balances durability with a compact footprint so technicians and DIYers can carry a complete, ready-to-use kit without unnecessary extras.

How durable and transportable is this manifold gauge?

The PB Motor Tech BMT manifold uses solid metal and brass components designed for repeated field use. Its lightweight assembly and integrated rubber-coated dials protect against knocks while keeping overall weight low for easier transport between jobs.

• Solid brass and metal body for corrosion resistance and longevity
• Rubber-coated large dials to absorb impact and improve legibility
• Compact, lightweight layout for easy storage and carrying

What refrigerants and systems can I use it with?

This gauge set is compatible with common automotive and domestic refrigerants including R134A, R12, R22 and R502, making it suitable for a wide range of repair and maintenance tasks. It supports both low- and high-side service along with charging operations when paired with appropriate refrigerant supplies and procedures.

• Works with R134A, R12, R22 and R502 refrigerants
• Three-way design supports high-side, low-side and charge/service ports
• Suitable for automotive and household AC systems with proper adapters

What hoses, couplers and pressure ratings are included?

The kit includes three color-coded 4-foot hoses (red, blue, yellow) and two straight 1/4" quick couplers so you can hook up to systems immediately. Each hose is rated for a 500 psi working pressure and a 2500 psi burst pressure for safe handling in typical service conditions.

• Three 4 ft color-coded hoses for clear high/low/charge distinction
• 500 psi working pressure, 2500 psi burst pressure for reliability
• Two 1/4" straight quick couplers included for fast connections

How does the sight glass and dial design help during service?

The built-in sight glass lets you visually confirm refrigerant flow and detect moisture or bubbles while charging or evacuating a system. Extra-large, high-contrast dials with protective rubber coating make reading pressures faster and reduce the chance of misreading in bright or dim work environments.

• Sight glass assists in monitoring refrigerant flow and clarity
• Oversized dials speed up pressure checks and improve accuracy
• Rubber coating protects gauges from wear and accidental drops

Who is this for: The PB Motor Tech BMT 3-way brass manifold gauge is aimed at professional HVAC and automotive technicians who need a rugged, versatile service tool, as well as competent DIY enthusiasts who handle routine AC maintenance. It provides the core features required for diagnostics, charging and routine troubleshooting without requiring extra aftermarket addons.