Glooglitter Oil & Dye Injector Kit — 2oz Hand Screw Injector, R134A/R1234YF Low‑Side Couplers, UV Light & Protective Glasses

Glooglitter Oil and Dye Injector Kit is a complete hand-operated injection set that lets you add oil or fluorescent dye into AC and refrigeration low-side ports without a compressor.

This all-in-one kit combines a screw-in hand injector, low-side quick couplers for both R134A and R1234YF, a UV flashlight, protective glasses, and a compact storage box so you can service automotive and small HVAC systems with minimal tools. The injector accepts up to 2 oz (60 ml) and works independently of a charging station, making it useful for topping oil or introducing UV dye for leak detection during maintenance or repairs.

How do I use the hand-turn screw injector safely?

Install the built-in check valve onto the Schrader valve core, then thread the injector into the valve. Turn the inner barrel to push fluid through slowly while watching system pressure and following refrigerant-handling precautions.

• Screw check valve firmly onto the valve core before injecting.
• Rotate inner barrel clockwise to dispense controlled amounts.
• Bleed any trapped air from the blue feed tube before final connection.
• Monitor low-side pressure and follow refrigerant safety rules.

Which refrigerants and vehicles are compatible with this kit?

The kit includes two dedicated low-side couplers — one R134A (13mm) and one R1234YF (14mm) — so it fits most modern passenger cars and light-duty HVAC low-side service ports. It also works with older refrigerants where low-side connection is appropriate.

• R134A systems via the provided 13mm low-side quick coupler.
• R1234YF systems via the included 14mm quick coupler.
• Compatible with many R12/R22 systems where a low-side port is accessible.
• Suitable for automotive and small home/office AC units.

What accessories are included and why do they matter?

The kit ships with an SAE 1/4" brass connector, a UV flashlight, anti-UV glasses, and a protective storage case so you can both inject dye and inspect for leaks. These extras make leak detection and safe handling more convenient when working in dim areas or under vehicle chassis.

• 1 × 2 oz (60 ml) hand-turn screw injector and optional 1/4 oz (7.5 ml) sizing.
• 1 × 13mm R134A low-side quick coupler and 1 × 14mm R1234YF coupler.
• UV flashlight plus anti-UV glasses for dye inspection and eye protection.
• Durable storage box to protect tools and keep the flashlight and glasses handy.

How durable and leak-resistant is the kit for repeated use?

The main injector body is machined from aluminum alloy with a brass 1/4" connector and a thick rubber hose for longevity and safe seals. Robust materials and the screw-in check valve design reduce the chance of accidental leaks during filling and inspection tasks.

• Aluminum alloy hand swivel for corrosion resistance and strength.
• Brass threaded 1/4" connector for secure fittings and longevity.
• Thick rubber hose to resist cracking and preserve pressurized seals.
• Compact storage box prevents damage and misplacement of small parts.

Who is this for: Technicians, DIY mechanics, and HVAC hobbyists who need a portable, non-compressor method to add lubricant or fluorescent dye into refrigeration and automotive A/C low-side ports. It’s especially useful when you want a controlled, hand-operated solution with the ability to inspect leaks under UV light, without carrying a full charging rig.