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Ensuring your vehicle's air conditioning system functions optimally is crucial for comfort, especially during warmer months. The low-side fitting is a critical component that connects the AC service equipment to your car's system. Selecting the correct, high-quality fitting prevents leaks and ensures efficient refrigerant handling.
2PCS High & Low Pressure AC Fittings Includes #8 high pressure and #10 low pressure 90° fittings for R134a AC systems. Ideal for repairs and custom lines.
Built-In Service Valves Integrated high and low side valves for easy charging, maintenance, and pressure checks.
90° Beadlock Design Angled fittings for tight spaces. O-ring beadlock ensures a secure, leak-resistant connection.
Standard Thread Sizes #8: 3/4-16 UNF; #10: 7/8-14 UNF. Fits standard AC hoses, compressors, and condensers.
Durable Aluminum Build Aluminum construction with reinforced sleeve and zinc-plated parts for strength and corrosion resistance.
Blue R1234YF Low Side Adapter: The blue low side adapter adopts low side R1234yf coupler 14 mm female x 1/4"SAE male. The R12 to R134a adapter connector adopts 1/4" SAE female x low pressure 13mm R134A quick coupler
Red R1234YF Low Side Adapter: The red high side adapter adopts high side R1234yf coupler 17 mm female x 1/4"SAE male. The R12 to R134a adapter connector adopts 1/4" SAE female x High pressure 16mm R134A quick coupler. This adapter is part of the R134A to...
Premium Brass Construction: Crafted from high-quality brass, these R134A to R1234YF quick couplers are durable and not easy to rust, deform, or break during the long serve life. The knurled grip ring ensures smooth and easy operation, allowing for a...
Leak-Free Performance: With a combination of a ball lock design and a rubber seal, these R1234YF adapter provide excellent sealing performance. The R134A to R1234YF adapter features an automatic closing function, making it easier and more convenient to...
Versatile Application: Ideal for car air-conditioning systems, this R1234YF to R134A low and high side adapter works well with R1234YF, R12, and R134A refrigerants. It’s perfect for use with AC charging, diagnostic checks, recovery, evacuation work, and...
Package includes: you will receive 1 piece low-side 7/16 inch port, 1 piece high-side 3/8 inch port, 2 pieces adapters convert R12 to R134a for 2 piece GM port, totally 4 pieces, can meet your replacement need, and you can also get 4 pieces anti-dust cap...
Application: these low/ high side retrofits converts 1/4 inch R12 R22 charging port and make it accept the R134a quick disconnect hose, fits most vehicles 1976 - 1995, excluding some GM cars 91 and up. Fits 1987 Lincoln Town Car 5.0L, 1991 Toyot a Pickup...
Function: converts from R-12 to R-134a air conditioning system, this valve can be screwed on top of a closed AC system that just needs a little refrigerant or top off
Easy to install: connected to the thread for use with the valve, 1 gas valve inside, fitted with a plastic protective cover
Durable material: both of the kit are made of corrosion-resistant metal that won' t wear out or rust over time, and anti-leaking design that will be safer for you
Chrome plated brass, low-side manual coupler with blue actuator
Connects to Robinair Enviro-Guard hoses to allow access to service ports on automotive R-134a A/C systems
Quick-connect design has an integral safety sleeve that protects against injury and refrigerant loss if the coupler is disconnected under pressure
Compact design easily fits into tight quarters - especially handy for retrofits
The 6-ball coupler design provides a more stable grip on the fitting than lesser 4-ball designs
Genuine Robinair Parts & Accessories: Tested and validated by our engineers - genuine Robinair replacement parts, accessories, and maintenance items are the best way to ensure proper operation and service life of your Robinair RRR equipment
WIDE COMPATIBILITY - Charging port adapter R12 R22 Port to accept R134a Quick Disconnect. These Low/High side retrofits/adapters/fittings will convert your old 1/4" SAE or 7/16’’- 20UNF R12 R22 charging port and make it accept the R134a quick...
PREMIUM QUALITY - With solid copper material, resistant to corrosion & good extensibility.
EASY INSTALLATION - The low AC fitting conversion adapter with time-saving and effort-saving while installing, lightweight, shortcut.
DIMENSION - Low Side, 1/4"SAE (7/16''- 20) x 13 mm, blue. High Side, 1/4" SAE (7/16’’- 20) x 16 mm, red.
EXCELLENT SEALING PERFORMANCE - This adapter features a robust construction, high heat resistance, durability, and corrosion resistance. It is rust-resistant and designed to prevent leaks, ensuring safer use.
Optimal Quantities: 1 90°Low side r12 to r134a convert adapter with dust cap, 1 90°high side retrofit adapter with dust cap, 5 low side dust cap, 5 high side dust cap, 5 R12 valve core, 5 R134a valve core, 20 R134a hose seal, 5 thimble and 1 valve core...
Reliable Material: gain the peace of mind that comes with superb materials; Our R12 to R134a convert adapter, valve cores, and thimble are crafted from quality copper to ensure robustness and longevity; With a precision engineered structure, we have...
Thread Size Precision: experience the ease of use like never before with accurate threading; The low side has a thread size of 1/4'' (7/16''- 20) x 13 mm (with blue cap), while the high side has a size of 1/4''(7/16''- 20) x 16 mm (with a red cap
Broad Compatibility: treat your old charging ports to a modern touch; Our low/high side R12 to R134a conversion adapter can be conveniently applied to upgrade your old 1/4'' SAE or 7/16"-20 UNF R12 R22 charging ports; Hence, it enables the connection of...
Comprehensive Set: we offer a comprehensive assortment of valve cores, a valve core remover, seal rings, and thimble; They are readily available for immediate replacement whenever necessary to maintain the optimal functionality of the AC retrofit fitting...
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Low-Side Fittings
Understanding Low-Side Fittings
The low-side fitting is part of your vehicle's air conditioning system, specifically designed for the lower pressure side of the compressor. It's the port where refrigerant is added or removed during servicing. These fittings are standardized to ensure compatibility with most AC service equipment. When purchasing, look for fittings made from durable materials like brass or high-grade aluminum to prevent corrosion and ensure a secure seal.
Key Features to Consider
When selecting a replacement fitting, several features are paramount. Firstly, verify the thread size and type to match your vehicle's existing port. Common sizes include 1/4" SAE and M10 x 1.25, but variations exist. Secondly, consider the valve core type; a Schrader valve is standard for most automotive AC systems. Finally, check for integrated O-rings or seals, as these are vital for preventing refrigerant leaks and ensuring a tight connection. A robust construction will withstand the pressures and environmental conditions associated with automotive AC systems.
Material and Durability
The material of the fitting directly impacts its longevity and performance. Brass is a popular choice due to its excellent corrosion resistance and durability, making it suitable for the harsh automotive environment. Aluminum is another option, offering a lighter weight and good resistance to certain types of corrosion. Regardless of the material, ensure the fitting is manufactured to industry standards to guarantee proper fit and function. Avoid fittings made from brittle plastics or low-quality metals that can crack or corrode quickly.
Installation and Compatibility
Proper installation is key to a leak-free AC system. Ensure you have the correct tools for the job, typically a wrench that fits the hex portion of the fitting. Before purchasing, confirm the fitting's compatibility with your vehicle's make, model, and year. Many manufacturers use specific thread types or sizes. Consulting your vehicle's service manual or an automotive parts specialist can help confirm the exact specifications needed. A properly seated fitting with a good seal will prevent costly refrigerant loss and system damage.
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