Oil Dye Injector 30ml With Low-Side Quick Coupler For HVAC Auto Dye Injection

The NIGHTKIST Oil Dye Injector 30ml with Low-Side Quick Coupler is a compact, high‑quality tool designed for precise oil and fluorescent dye injections into HVAC and car A/C systems. Built to endure demanding service work, it combines a robust 30 ml reservoir with a durable low‑side quick coupling for quick, clean connections during every job.

Made from a rugged blend of steel, brass, and rubber, this injector delivers reliable performance in both home and professional settings. It features a 1/4 inch female SAE connector that connects directly to most 1/4 inch SAE ports on A/C service lines. If your system uses a different port size, adapters may be required to complete the connection. The unit is ideal for R134a applications and supports both oil and fluorescent dye injections for leak monitoring.

Originating from Mainland China and designed for HVAC, professional services, and auto repair, this tool helps you address low oil situations that can stress compressors and ruin systems. By enabling precise dosing of oil or dye, it aids in proactive maintenance and accurate leak detection, keeping your A/C system running smoothly. All electronic and mechanical equipment sold by InterCyprus to EU countries is CE certified and carries a two year warranty.

Benefits & Tips

• Precise dosing with a 30 ml capacity: deliver measured amounts of oil or dye to your A/C system, helping prevent overfilling and ensuring consistent results.
• Leak monitoring made simple: use with fluorescent dye to visibly identify leaks, making traceability faster and easier during service.
• Versatile compatibility: works with all oil types (POE or mineral oil) and dyes; if you encounter a different port size, apply the appropriate adapter (e.g., CV23p for certain 5/16" R410a systems) to complete the setup.

Product Specifications

• Item Type: Grease Injector
• Special Features: Oiler
• Name: Compressor Oil / Fluorescent Dye Injection
• Color: As pictures show
• Material: Steel, Brass, Rubber
• Flexible Hose Working Pressure (Max): 355-425 Psi (24-29 Bar)
• Flexible Hose Working Pressure: Within 285 Psi (20 Bar)

Package includes:

• 1 x 30ML Filler
• 1 x Transparent Fluid Tube
• 1 x Straight-Post Quick Joint

Warnings / Reminders

• The real color of the item may be slightly different from pictures due to monitor brightness and lighting.
• Please allow slight manual measurement deviation for the data.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.