Product Description: The 2 Pack 49100 78mm Replacement Crystal Gauge Lens is the perfect solution for HVAC technicians and DIY enthusiasts looking to restore clarity to their Yellow Jacket or Brute II manifolds. Whether your original gauge lens is cracked, fogged, or scratched, this replacement crystal brings back clear visibility for accurate pressure readings. Precision Fit & Compatibility Designed specifically for Yellow Jacket gauges (model 49100) and Brute II manifolds, these replacement lenses are compatible with both red and blue gauge models. Each lens measures 78mm (approx. 3.07 inches) in diameter with a 0.86cm thickness – matching OEM specifications for a snug, secure fit. Crystal Clear Visibility Unlike cheap plastic covers, our crystal gauge lens offers high translucency and a smooth, flat surface that won't distort your readings. Easily monitor refrigerant pressure, vacuum levels, and system performance without straining your eyes. Durable Construction Built to last, this HVAC gauge protector resists yellowing, cracking, and impact damage from daily job site use. Keep your manifold gauge cover looking professional while protecting the internal gauge mechanism from dust, debris, and accidental bumps. What's Included 2 x Replacement Crystal Gauge Lenses (78mm / 49100 model) Compatible with Yellow Jacket & Brute II manifolds (red/blue) Simple Installation No special tools required. Just remove the old gauge lens, clean the gasket surface, and press the new replacement crystal into place. A quick and affordable way to extend the life of your yellow jacket manifold gauges. Perfect for HVAC technicians, refrigeration specialists, automotive AC repair professionals, and home workshop users.