Supercool hand-turn injector for R-134a and R-12 (60 milliliter capacity) is a dye and oil hand-turn injector for R-124a and R-12 systems. This unit does not require a manifold gauge to use on the low side of pressurized systems. A great tool for introducing 1/4 ounce (7.5 milliliter) up to 2 ounce (60 milliliter) of UV dye, lubricants or leak stop to a closed A/C system without adding refrigerant. The quick-connect style for R-134a systems may also be used on R-12 systems. Supercool is a basic provider of A/C chemicals including PAG and POE lubricants, flush, ultraviolet leak detection dye and polymer free leak stops. Supercool offer one of the most complete A/C maintenance programs in the marketplace today. Supercool lubricants are formulated with the finest base stocks and additives available today resulting in highly sought after performance qualities. Outstanding oxidative and thermal stability, helping to extend fluid life. High viscosity index resulting in decreased volatility and enhanced protection. Excellent protection against wear, rust, corrosion, carbon build-up, and varnish. Enhanced resistance against water contamination compared to competing products. Supercool customers receive industrys leading technology in all fluids with lubricants and UV dyes formulated to meet or exceed OEM performance specifications. In addition, all lubricants are top-off compatible with their corresponding OEM and aftermarket equivalents. Designed for real-world operating conditions, they provide an unsurpassed level of service, performance, protection, and fluid life.