Boltigen R134a Refrigerant Recharge Hose Kit — R134a/R12/R22 Can Tap & Gauge, 3000psi Reinforced Hoses

Boltigen R134a Refrigerant Recharging Hose Kit is a complete A/C service set that includes a pressure gauge, heavy-duty hoses, bullet piercing valves, can tap adapters and quick couplers for refilling R134a, R12 and R22 systems.

This professional-grade recharging hose kit is designed for DIYers and technicians who need a reliable, multi‑purpose toolkit for automotive and small‑space air conditioning service. It pairs a large, easy‑to‑read gauge with reinforced hoses rated for high burst pressure, brass can taps that pierce and self‑seal, and a selection of adapters to fit common refrigerant cans, service ports and vacuum pumps. The components are corrosion‑resistant and built to interchange with many standard parts, making the kit useful for maintenance, topping off refrigerant and basic troubleshooting.

How does this kit help me recharge an R134a system?

The kit combines a gauge, charging hose and compatible can‑tap valves so you can control refrigerant flow and monitor pressure while topping off a system. The large colored dials with a centigrade scale make readings quick to interpret during service.

• 250 psi gauge maximum; easy‑read colored faces for cold/hot ranges.
• Hose rated 3000 psi burst, 600 psi working pressure for safety.
• Self‑sealing can taps prevent leaks after puncture.
• Includes adapters for R134a, R12 and R22 cans and ports.

Can I use the bullet piercing valve with different pipe sizes?

Yes — the included BPV‑31 bullet piercing valve fits multiple outside diameters and is suitable for a variety of service lines. It’s constructed from corrosion‑resistant metal to withstand repeated use without seizing or rusting.

• Compatible with 1/4", 5/16" and 3/8" OD pipes.
• Replaces common part numbers such as AP4502525 and BPV31D.
• Durable metal body for long service life.
• T-handle allows fingertip control when piercing lines.

What connectors and adapters are included for vacuum pumps and quick coupling?

The kit supplies a 1/4" flare female to 1/4" male vacuum pump adapter and a low‑side R134a quick coupler for tool‑free connections. These pieces hand‑tighten to produce a reliable seal, simplifying attachment to pumps, manifolds and service ports.

• 1/4" flare female to 1/4" male adapter for vacuum pump hookups.
• R134a low‑side quick coupler for fast connect/disconnect.
• Hand‑tighten fittings eliminate need for extra tools during setup.
• Brass components help resist corrosion and leaks.

What safety and quality features should I expect from this recharge kit?

Boltigen performs full quality checks on each kit before shipping and builds components to withstand typical service pressures and handling. The hoses and valves include seals and materials chosen to reduce leakage risk and extend working life under routine use.

• 100% QC inspection before delivery by Boltigen.
• Thickened seals on can taps for leak prevention.
• Brass can taps resist rust and wear for repeated use.
• Hose pressure ratings minimize burst risk during charging.

Who is this for: Technicians, mobile mechanics and experienced DIY vehicle owners who perform refrigerant topping and basic A/C servicing will find this Boltigen kit practical and cost‑effective. It’s well suited to automotive R134a systems and small refrigeration jobs where reliable taps, a clear gauge and compatible adapters speed up service. If you require certified refrigerant handling training or perform complex diagnostics, use this kit alongside proper training and safety procedures.