ZEAJSRU AC Flush Kit — Thick Stainless Steel Tank with Pressure Gauge & Multi‑Adapter Set for R134A/R12

The ZEAJSRU AC Flush Kit is a pressurized stainless-steel flushing bottle and accessory set designed to safely clean and purge refrigerant lines for automotive and home HVAC systems using common refrigerants.

This compact kit brings a durable, thick-walled stainless tank together with a pressure gauge, adapters, a rubber-tipped flushing head and a flexible hose so you can remove debris, oil and contaminants from air conditioning lines before servicing or recharge. Built to work with R134A, R12, R22, R404 and R410A systems, the components are arranged for controlled spraying and stepwise pressure release during flushing operations.

How do I set and monitor pressure safely while flushing?

The kit includes an adjustable overpressure air-leakage valve and a dual-unit pressure gauge so you can set and observe bottle pressure in real time. Tightening the valve raises stored pressure, while loosening reduces it; the valve will vent automatically if pressure exceeds the set limit.

• Built-in overpressure automatic exhaust for safety
• Dual-scale manometer for clear readings in different units
• Fine adjustment via 1/4" fittings and visible gauge

What connectors and fittings are included for compatibility?

This set ships with multiple adapters and connectors to fit a variety of service ports: an American 1/4" NPT air plug on the manometer, a 1/4" SAE hose adapter, plus two spare adapters — a 1/4" SAE brass hose adapter and a 1/4" NPT European air plug. A 1/4" female hose connector attaches the supplied hose to the flushing head or tank.

• Manometer with 1/4" NPT American air plug installed
• Primary 1/4" SAE hose adapter plus a spare brass SAE adapter
• Extra 1/4" NPT European air plug and spare sealing rings included

How does the flushing head and hose perform in tight spaces?

The kit offers a compact trigger spray gun with a rubber cone tip and a roughly 0.8 m long rubber liquid hose that resists pressure and abrasion. The small, pistol-style gun is easy to operate with one hand and the rubber tip helps concentrate the flush flow into narrow fittings and passages.

• Trigger spray gun for single-hand control and precise spraying
• Pressure-resistant rubber hose, approximately 0.8 m long
• Replaceable rubber cone tip for targeted flushing of lines and components

What routine maintenance or troubleshooting should I expect?

Normal use may require periodic lubrication of the gun head valve to keep it returning smoothly; if the valve sticks after pressing, disassembling and adding lubricant typically restores operation. Spare O-rings are included to replace worn seals and maintain airtight connections.

• Includes 2 spare adapters and 22 spare sealing rings for upkeep
• Add light lubricating oil to gun valve if it fails to return
• Check gauge and fittings before each use to ensure safe operation

Who is this for: The ZEAJSRU AC Flush Kit suits mechanics, HVAC technicians and DIYers who service vehicle or residential air conditioning systems and need a portable, metal flushing bottle with attachments for varied refrigerant types. It’s intended for users familiar with HVAC service practices and who will follow safety and recovery procedures when working with pressurized systems and refrigerants.