Mastercool 53123-YF Refillable Oil and Dye Injector for R1234yf Systems – 2 oz Capacity – Anodized Aluminum Body – Smooth-Twist Handle – SAE J2888 & EPA Compliant

Mastercool 53123-YF Refillable Oil and Dye Injector for R1234yf Systems The Mastercool 53123-YF is a professional-grade refillable injector designed to deliver precise amounts of oil or UV dye into R1234yf automotive A/C systems. Built for technicians who demand both accuracy and durability, this tool ensures quick and clean injections with minimal effort. Key Features: - Dual-Purpose Design: Ideal for injecting refrigerant oil or UV leak detection dye - 2 oz Capacity: Supports accurate, controlled injections with etched measurement scales in 1/10 oz, 1/4 oz, and milliliters - Anodized Aluminum Construction: Durable black anodized body built for daily use - Smooth-Twist Handle: Provides consistent delivery and excellent tactile control - Premium Barrier Hose: High-quality blue nylon hose meets J2888, EPA, SAE, and UL standards - R1234yf Low Side Coupler: Extended disconnect sleeve ensures secure fit; SAE J639 and J2888 compliant Quick and Easy Operation: 1. Connect the injector to the low side service port 2. Twist the handle to deliver the desired amount of oil or dye 3. Disconnect and clean as needed Built for professional A/C technicians, the 53123-YF combines function, durability, and speed — backed by Mastercool’s U.S.-based customer support.