Description
Product Description The Hongsen HS-12B is a professional, high-precision automotive air conditioning quick coupler set designed for safe, efficient diagnostic testing, evacuation, and recharging operations. This premium two-piece kit includes both the high-side (red) and low-side (blue) manual couplers required to interface with vehicle R134a climate control systems. Machined from heavy-duty brass and high-grade anodized aluminum, the HS-12B features a straight, manual-adjustable design. Rather than popping off under pressure like cheaper snap-on models, the knurled top control knobs allow technicians to manually depress the vehicle’s Schrader service valves. This adjustable plunger design provides an airtight, zero-leak seal, drastically reducing the risk of refrigerant loss, atmospheric venting, or frostbite during connection. Technical Specifications Brand: Hongsen Model: HS-12B (Complete High & Low Set) Material: Solid Brass body with color-coded Anodized Aluminum adjustment handles Interface Ports: 1/4″ SAE Male Flare (standard connection for manifold hoses) Design Profile: Straight-through manual control with a multi-ball locking quick-connect sleeve Included Component Models The HS-12B set is a combination package that includes two specific individual couplers: HS-12L (Blue Knob): Straight manual quick coupler adjusted specifically for the vehicle’s Low-Pressure suction port. HS-12H (Red Knob): Straight manual quick coupler adjusted specifically for the vehicle’s High-Pressure discharge port. Compatible Models & Equivalents This straight-body manual coupler configuration is an industry-standard design. It is highly cross-compatible and frequently maps to the following alternative manufacturer designations: QC-12L / QC-12H (Standard industrial factory code used across HVAC lines) HS-ML / HS-MH (Hongsen’s 90-degree angled manual coupler series equivalent) Other equivalents: Mastercool 82834 / 82934 series, CPS Products premium manual sets, and various 1/4″ SAE adjustable R134a adapters. Compatible Products & Equipment The HS-12B kit acts as a universal adapter set for automotive climate service tools, making it fully compatible with: Vehicle A/C Ports: Connects directly to the dedicated R134a high and low service ports found on most domestic and import passenger cars, trucks, and commercial vehicles built before the global transition to R1234yf. Manifold Gauge Sets: The 1/4″ SAE male threads hook up seamlessly to the standard red (high) and blue (low) charging hoses of diagnostic manifold gauge sets. Refrigerant Hoses & Recovery Machines: Interfaces directly with automotive recovery, recycling, and recharging stations, as well as standalone vacuum pumps during system evacuation.
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