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Lab Refrigeration Equipment Categories
Best Choice Goodheart-Wilcox Publisher 
Modern Refrigeration and Air Conditioning Goodheart-Wilcox Publisher 
Modern Refrigeration and Air Conditioning - Lab Manual Modern Refrigeration And Air ConditioningOVAQUIXI 
OVAQUIXI 240Mm Liquid Cooler Refrigeration Cooling System, Aluminum Alloy Construction, 126W Cooling Power, Ideal for In [High Cooling Efficiency]126W cooling power keeps systems properly cooled, ideal for industrial refrigeration setups orBest Value Multizenic 
Semiconductor Refrigeration Pieces Kit, Thermoelectric Peltier Cooler for Small Space Cooling, No Noise No Refrigerant, Solid-State Cooling Technology: This semiconductor refrigeration pieces kit uses thermoelectric Peltier cooling with noClphendorine 
TEC1-03110 Thermoelectric Cooler Module, 20x20mm Semiconductor Refrigeration Module, 3V 10A Cooling and Heating Peltier Dual Cooling and Heating Function: This TEC1-03110 thermoelectric cooler module delivers both cooling and heating in oneGoodheart-Wilcox Publisher 
Modern Refrigeration and Air Conditioning NutriEss 
Single Core Cooler DIY Semiconductor Refrigeration System 12V 72W Thermoelectric Cooling Device for DIY Projects and Lab [EFFICIENT COOLING PERFORMANCE] The Single Core Cooler delivers rapid and powerful cooling with a 72W power rating and 1Spacnana Spacnana 240W Semiconductor Cooling System,Multi Function, Suitable for Semiconductor Refrigeration Theories Learning an [MULTI FUNCTION] This semiconductor cooling system serves as a cooling, air cooling device, and overall cooling equipmenVEVOR VEVOR 3CFM 84 L/M 1-Stage, Refrigerant Vacuum Pump Refrigeration Gauges A/C Air Conditioning 1440 RPM 1/4 HP, 3 pcs hose Heavy Duty Vacuum Pump: FAD: 3 CFM, Single Stage; Power: 1/4 HP; Ultimate Vacuum: 5PA. Our HVAC vacuum pump comprises heGoodheart-Wilcox Publisher Modern Refrigeration and Air Conditioning Lab Manual Goodheart-Wilcox Publisher Modern Refrigeration and Air Conditioning Lab Manual ZDETGU ZDETGU 12V 4-Chip TEC1-12706 Thermoelectric Cooler Compact Semiconductor Cooling Device for Small Spaces, Projects, and Compact Cooling Solution: This thermoelectric cooler is ideal for small spaces up to 20L, lowering temperature by 5-8 deSpacnana Spacnana Thermoelectric Cooling System, Aluminum Alloy Box Semiconductor Cooler 70W for DIY Refrigeration Projects and I [Efficient Cooling]Integrated fan cools spaces rapidly for DIY refrigeration projects and industrial use.ADVWIN Advwin Vacuum Pump Set 3.6CFM 1/4 HP Single Stage, 3 Way AC Manifold Gauge Set for R134A R22 R12 R410A Refrigerant, HVAC Excellent Maintenance Tool: The 3.6 CFM vacuum pump adopts a cast aluminum structure and aluminum alloy shell, ensuringHORUSDY HORUSDY No-Spill Coolant Funnel Kit, with Valve Switch and Handle on Funnel, Radiator Bleeder Funnels Kit, Car Coolant R Unique design: different from other ordinary funnels, our high-end coolant funnels have a special rotary switch, which cP PBAUTOS P PBAUTOS 4-Way A/C Diagnostic Manifold Gauge Set Refrigeration Machine for Vacuum Evacuation, Fits R410A, R22, R134A, R 3-color Hoses: It is equipped with 3-color hoses, it can be recognized easily, 1 red hose, 1 blue hose and 2 yellow hoseBadafaci Badafaci 144W Double Core Semiconductor Refrigeration Peltier, Cooling and Dehumidification Equipment for Small Refriger [Efficient Performance] The cooling efficiency of this peltier device depends on factors like cooling space size ambientP PBAUTOS P PBAUTOS 3-Way A/C Diagnostic Manifold Gauge Set Refrigeration Machine for Vacuum Evacuation, Fits R410, R134A, R22, R4 3-color hoses: It is equipped with 3-color hoses, it can be recognized easily. Red for high pressure, blue for low press11% Off SEDY SEDY 18-Piece Radiator Pressure Tester Kit, Cooling System Leak Test Tool with Hand Pump & Gauge, Universal Adapters for COMPLETE 18-PIECE KIT Includes hand pressure pump with gauge, stainless steel thermometer, colour-coded radiator adapterBadafaci Badafaci 144W Thermoelectric Cooler, Peltier Water Cooling Device with DC12V Power Supply, for Semiconductor Refrigerati [Complete Cooling Kit Option] Choose between a single cooler or a comprehensive cooler kit including a pump water coolinEosnow Eosnow Thermoelectric Cooler Module Semiconductor Electronic Refrigeration 30x30mm TES1-12706 12V6A for Industrial Appli [ENERGY EFFICIENT]: Operates on DC12V with a maximum current of 6A, making it a power-efficient cooling solution.uxcell uxcell Solid Copper Stopper, 1/2" Tube Copper Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigerat Bottom Diameter(small-end):10 mm/0.4 inch; Top Diameter(big-end):13.5 mm/0.5 inch; Applicable Hole Diameter: 12.7mm（1/2"uxcell uxcell Solid Copper Stopper, 5/8" Tube Copper Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigerat Bottom Diameter(small-end):13 mm/0.5 inch; Top Diameter(big-end):16 mm/0.6 inch; Applicable Hole Diameter: 15.88mm（5/8")Fafeicy Fafeicy Semiconductor Thermoelectric Peltier Cooler, Dual Chip Cooling, 144W for 15L Water Applications, Ideal for Lab o Efficient Cooling Performance: 144W dual-chip peltier cooler ensures rapid cooling for 15L water, for labs and industriaSpacnana Spacnana 3Pcs AC Charging Hose Detection Liquid Filling Refrigerant Pipe CT‑360RYB, 1.5 Meter 3 Colour AC Charging Hose CONVENIENT TO USE: This AC charging hose has ball valve design, only need to turn a quarter of the valve handle to contrDAYUAN DA Yuan 28pcs Universal Radiator Pressure Tester and Vacuum Type Cooling System Kit 28Pcs universal radiator pressure tester and vacuum type cooling system kit; Allows easy testing for leakage in radiatorYDuupxe YDuupxe 144W Semiconductor Peltier Cooler, Dualchip Water Cooling Device for 15L Water, with Stable Low Noise Work, No R [Complete Cooling Kit Option] Available as a single cooler or a comprehensive kit including a pump, water cooling unit,uxcell uxcell Solid Brass Stopper, 1/4" Brass Tube Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigeratio Bottom Diameter(small-end):4mm / 0.16 inch; Top Diameter(big-end):8 mm/0.3 inch; Applicable Hole Diameter: 6.35mm（1/4");Zonizforceal Semiconductor Refrigeration Pieces Kit, Thermoelectric Peltier Cooler, 12V 180W Air Cooling Device with 3 TEC1-12705 Chi Powerful Silent Cooling: This semiconductor refrigeration pieces kit delivers up to 180W of cooling power using three TEAruzpy AC Manifold Gauge Set for R134a R12 R22 R502 Refrigerant, 3 Way HVAC Gauge Set Diagnostic Tool with 1.2m Hoses, Couplers All-in-One AC Gauge Set: Professional manifold gauge set works with R134a refrigerant, R22 refrigerant, R12, R502, and 1uxcell uxcell Solid Brass Stopper, 5/8" Brass Tube Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigeratio Bottom Diameter(small-end):13mm / 0.51 inch; Top Diameter(big-end):16 mm/0.6 inch; Applicable Hole Diameter: 16mm（5/8");uxcell uxcell Solid Brass Stopper, 3/4" Brass Tube Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigeratio Bottom Diameter(small-end):15mm / 0.59 inch; Top Diameter(big-end):19.4 mm/0.7 inch; Applicable Hole Diameter: 19mm（3/4"AUNMAS AUNMAS Digital Vacuum Meter 0.001-19 Torr, ABS Material, Accurate Pressure测量, Ideal for HVAC and Pharmaceutical Lab Equi [Versatile Measurement Range]Measures vacuum levels from 1 to 19000 microns, ideal for HVAC systems and refrigeration peuxcell uxcell Solid Brass Stopper, 7/8" Brass Tube Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigeratio Bottom Diameter(small-end):18mm / 0.71 inch; Top Diameter(big-end):22 mm/0.8 inch; Applicable Hole Diameter: 22mm（7/8");ZephyVita 12V Thermoelectric Peltier Refrigeration DIY Water Cooling System Cooler Device with Fan for Fish Tank Computer Circulat [MULTI-PURPOSE COOLING] Application for fish tank, computer, circulating water, and cooling equipment, providing versatiuxcell uxcell Solid Brass Stopper, 1" Brass Tube Stoppers Tapered Shaped Lab Plugs for Sealing Copper Pipes HVAC Refrigeration Bottom Diameter(small-end):20mm / 0.79 inch; Top Diameter(big-end):25 mm/1 inch; Applicable Hole Diameter: 25mm（1"); Hei15% Off GOYOJO GOYOJO Refrigerant Leak Detector – Advanced HVAC/Auto & Halogen Sniffer with LCD Display, Accurately Detects R22, R32, R Advanced Detection: Expertly identifies R22, R32, and R134a within a 0-1000 PPM range, showcasing our top-tier precisionRiksam Air Conditioner A/C Refrigeration Tools Kit Manifold Gauge Set 5 Feet R134A R12 To diagnose and recharge any A/C system with this basic set of manifold gauges. Theset includes high pressure and low prGeneric Efficiency with Freezer Door Latches for Oven Equipment Access Making Versatile Choice for Various Commercial Refrigerat [Material]:Our door handle is made of zinc alloy material,designed to withstand the harsh conditions of commercial use.IHealvian Healvian 5pcs Temp Sensor Probe Digital Transmitter Cable for Food Labs Equipment Flexible length design: the flexible length design of the cable meets various installation needs, facilitating remote moShurzmotic 240W Semiconductor Refrigeration Peltier Cold Plate Cooler, Thermoelectric Cooling Module with Fan for Small Space Cooli High-Power Cooling: This 240W semiconductor refrigeration Peltier cold plate cooler delivers rapid and efficient coolingMultizenic XD2030 12V 20A Semiconductor Refrigeration Cooling Plate Assembly, 220W 4 Core Thermoelectric Cooler with Adjustable Dua Efficient 4-Core Cooling: This XD2030 12V 20A semiconductor refrigeration cooling plate assembly delivers powerful 220WGoodheart-Wilcox Publisher Essential Electrical Skills for Hvacr: Theory and Labs 15% Off VEVOR VEVOR AC Gauge Set - 3 Way AC Manifold Gauge Set for R134A R22 R12 R502 Refrigerant, Freon Gauges with 5ft Hoses, Couple Compatible with 4 Types of Refrigerants: Our professional three-way manifold gauge set is compatible with R134A, R12, R210% Off PB Motor Tech BMT PB Motor Tech 3 Way AC Manifold Gauge Set for R134A R12 R22 R502 Refrigerants, with Quick Couplers, 410 Adapter, Can Tap Comprehensive Diagnostic Kit: Includes 3-way manifold gauge, 3 color-coded hoses, 2 quick couplers, can tap, 410 adapterBACOENG BACOENG R134a Refrigerant Diagnostic Manifold Gauge Set, AC Repair Tool Kit for HVAC/AUTO with Tool Bag - Includes 3CFM Gauge Set -- 2 Valve Manifold with sight-glass & 1/4" SAE fittings anodized aluminum block body, oversized sight-glass fKUNLONGSKY Refrigerant Manifold Gauge Set Air Conditioning Tool for R410A R32 R134A Air Condition Refrigeration Tool Replacement Ac Gauges are marked for R134A R32 R410 R22 pressure reading.labwork 14Pcs Coolant Radiator Pump Pressure Tester Cooling System Detector Vacuum Purge Head Gasket Replacement for Car Detecto Fitments - Replacement for Car Detector Tester ToolZDETGU 2pcs Liquid Safety Valve R410A R22 Air Conditioning Refrigerant 1/4 Safety Adapter Conditioning Refrigerant Valve [Premium Quality Construction] Designed by an experienced team, this valve precisely controls the high and low pressurePB Motor Tech BMT PB Motor Tech 4.5 CFM Vacuum Pump with Brass Manifold Gauge, Complete AC Service Kit for R134A R12 R22 R502 Refrigerants Premium Quality Material: Constructed from durable solid brass, our manifold gauge features an easy-to-read sight glassVEVOR VEVOR Coolant Pressure Tester Kit, 47Pcs Radiator Vacuum Refill Kit with 3 Metal Adapters, Universal Fit, Automotive Coo Radiator Pressure Tester Refill Kit: 47pcs radiator pressure tester kit includes a pressure pump, vacuum & coolant fillGrcfumo Grcfumo Air Conditioning Manifold Pressure Meter, Brass Refrigeration Tool with Sight Glass, AC Refrigeration Systems fo DURABLE BRASS CONNECTOR: Featuring a high-quality brass connector with a standard G1/4 pipe thread, this meter ensures a10% Off VEVOR VEVOR 4 Way AC Gauge - AC Manifold Gauge Set for R134A R22 R12 R410A Refrigerant, Freon Gauges with 5ft Hoses, Couplers, Compatible with 4 Types of Refrigerants: Our professional four-way manifold gauge set is compatible with R134A, R12, R22AMZ-Warehouse Refrigeration Technologies Big Blu High Temperature Leak Reactant Rt100s Lichamp Lichamp HVAC R410A Manifold Gauge Set AC R134A, Freon R22 R32 410A 134A Diagnostic Manifold Gauge with Hose Kit Air Cond Multifunctional A/C Gauge Set: Professional 3 way automotive air conditioning diagnostic manifold gauge set will compatiLichamp Lichamp HVAC R410A Manifold Gauge Set AC R134A, Freon R22 R32 410A 134A Diagnostic Manifold Gauge with Hose Kit Air Cond Multifunctional A/C Gauge Set: Professional 3 way automotive air conditioning diagnostic manifold gauge set will compatiTigbear R134A R1234YF R410A Refrigeration Pressure Gauge, Manifold Gauge Kit, High and Low Recharge Manifold Gauge with 1/8" Mal 𝐖𝐈𝐃𝐄 𝐔𝐒𝐀𝐆𝐄: Air conditioner refrigerant low and high pressure gauges are suitable for R134A R1234YF R410A refriRefrigeration Technologies Refrigeration Technologies Maximum Strength Condenser Cleaner Non-Toxic & Odorless13% Off VEVOR VEVOR Coolant Pressure Tester Kit, 47Pcs Radiator Vacuum Refill Kit with 3 Metal Adapters, Universal Fit, Automotive Coo Radiator Pressure Tester Refill Kit: 47pcs radiator pressure tester kit includes a pressure pump, vacuum & coolant fillLuxshiny Luxshiny Refrigerant Pressure Gauge Air Conditioner Refrigeration System Hvac Gauge Set with Silicone Hose for Car Ac Ma User-friendly design: easy to operate, making refrigerant testing and charging simple for both professionals and DIY entGupcaqosjw Gupcaqosjw Air Conditioner Leak Detector Kit | Flashlight AC Leak Detection Tool Kit | Leakage Tester Light Professional Pinpoint Leak Sources: The kit provides high-efficiency detection for AC systems and appliances like fridges and freezerDaiilg Daiilg Air Condition Manifold Gauge for R22/R410A/R134A/R404A High & Low Pressure A/C Refrigeration Tool with Sight Glas LOW Pressure Range: -30~500psi/0~35barGeneric AC Leak Detector Kit | AC Service Kit - Portable Tester Refrigerant for Plumbing System Inspection Radiator Pressure Tes Multi-Position Compatibility: Featuring modular adaptability, this solution supports multi-position compatibility to enaCMTOOL CMTOOL Digital HVAC Gauges Set, 92 Refrigerants, Digital Manifold Gauge Set, Pressure and Vacuum Test, HVAC Tools with 3 1.【92 Refrigerants & 5 Pressure Units & 2 Temperature Units】This digital refrigerant gauge has a 92 refrigerant databaseGeneric AC Gauge Hoses | Refrigeration Hoses,with Pressure Gauge Anti-Backflow Refrigeration Tube for Leak Detection Auto Repair Solid and Solid Build: The AC charge hose features a robust construction with pressure-resistant and rustproof materialsGeneric AC Charge Hose,Refrigeration Hoses | with Pressure Gauge Anti-Backflow Refrigeration Tube for Leak Detection Auto Repair Strong Material Strength: Designed with good-grade materials, the AC charge hose assures steady functionality through itOEMTOOLS OEMTOOLS 24444 Coolant System Refiller Kit, 5 Adapters, Eliminate Trapped Air, Test Radiator and Heating Core Lines for Efficient Cooling System Refill: The OEMTOOLS 24444 AirEvac Kit quickly refills your vehicle's cooling system while effeGeneric AC Refrigeration Gauge Wheel | Vehicles Replacement Part - Automotive AC Gauge Handle | for Seasonal Check-up System Rep Quick Attachment Feature: Featuring a 5.8mm mounting hole, the car air conditioner gauge wheel handle provides seamlessFOMIYES FOMIYES Automotive Air Conditioner Refrigerant Manifold Gauge Set with Silicone Hoses, Ac Pressure Measurement Tool for Comprehensive set: includes a pressure gauge, two canisters, adapters, and a can opener, providing everything needed forMtsooning Mtsooning R134A Refrigerant Charge Hose Kit, BPV31 Bullet Piercing Tap Valve, Hose Refrigerant Can Tap with Gauge for R1 [R134A CHARGING HOSE] 19 inch hose with R-134a can tap to R-12/R-22 service port connection, 1/2 inch end fits R12, 22,Dollate Dollate 50LB Refrigerant Recovery Tank for R12, R22, R134A, R410A, etc HVAC Cylinder Refrigerant Recovery Cylinder Tank R410A Refrigerant Tank: It can recover many kinds of refrigerants such as R12, R22, R134A, R410A and so on. It can be usAURELIO TECH AURELIO TECH 2020 UPGRATE Version 4 Way A/C Manifold Gauge Set Fits R134A R410A R404A R22 Refrigerants with 5FT Hose, 3 2020 UPGRATE VERSION: 1) Can tap with back-flow preventer. 2) 100% brass and aluminum valve gauge body, knobs are made oAURELIO TECH AURELIO TECH 2020 UPGRATE Version 4 Way A/C Manifold Gauge Set Fits R134A R410A R404A R22 Refrigerants with 5FT Hose, 3 2020 UPGRATE VERSION: 1) Can tap with back-flow preventer. 2) 100% brass and aluminum valve gauge body, knobs are made oAreyourshop Areyourshop Refrigeration HVAC Digital Pressure Gauge Single Manifold Gauge 1: High Quality and durable.Nurdo 3 Way Refrigerant Gauge AC Diagnostic Manifold Freon Gauge Set Refrigerants with Couplers and Acme Adapter Professional 3-way air conditioning diagnostic manifold gauge set.VEVOR VEVOR AC Manifold Gauge Set for R134a R404A R1234yf R22 Refrigerant, 4 Way AC Gauge with 1.5m Hoses, Adapters, Quick Cou Complete Manifold Gauge Set: This complete kit includes a 4-way manifold gauge, 4 color-coded hoses, R134a/R1234yf quickLEAKFINDER LEAKFINDER LF1001CS Automotive Universal Air Conditioner Refrigerant Leak Detection Dye, Services R134a, R-1234yf System AUTOMOTIVE LEAK DETECTION SOLUTIONS - The LEAKFINDER brand from TRACER PRODUCTS offers the brightest, most cost-effectivMR CARTOOL AUTOOL lm120+ Refrigeration Digital Manifold Gauge Meter HVAC Vacuum Pressure Temperature Tester Kit Leakage Test with T ♻️【Widely Applicable】The intelligent electronic refrigerant group instrument is an auxiliary instrument for the installaGeneric Coolant Pressure Tester Kit - Cooling System Leak Detector, Automotive Gauge Refill Tool | Universal Radiator Pump Testi Optimized Fluid Handling: Facilitate quick coolant changes and purge air efficiently via vacuum pressurization, ensuringArtudatech Artudatech Refrigeration HVAC Digital Pressure Gauge Single Manifold Gauge 1: High Quality and durable.Techson Techson Copper Pipe Tube Expander, Hand Refrigeration Swaging Tool, Universal Manual Air Conditioner Install Repair Tool Made of alloy materials solid and sturdy durable and long life to use. Convenient and light Spring design make it work mOrion Motor Tech OrionMotorTech 1.52m AC Gauge Set for R134A R12, R22, R502 Refrigerants, with Couplers and Can Tap Upgrade 3-way air conditioning diagnostic manifold gauge set for R134A R12 R22 and R502 refrigerants. Designed for AC frHGFDXHB Professional Service Manifold Gauge Set for Refrigeration R22 R134a R404a Refrigerator Parts 1. **Accurate Measurements**: The Digital Manifold Pressur/e Gauge provides precise readings for refrigerants R22, R134aJiawu Jiawu HVAC Refrigerant Leak Detector Advanced Sustainability Frans Feaks Gas for Climination R22 R410A R134A R1234YF, Id [MU APT for LTIPLE Refrigerants Compatible]: Compatible with R22, R410A, R134A, R1234YF and more.AB Tools AC Manifold Gauge Set Air Conditioning Diagnostic Refrigeration Set Kit Pump Generic AC Diagnostic Tool, Professional Multifunctional AC Freon Gauge, Portable Refrigerant Testing Device, Refrigeration Syst Easy to Read: Ideal for refrigerant testing, charging, and evacuati, this AC gauge set displays temperatures in degree cWisoqu Digital Manifold Gauge, G1/4 Refrigeration Digital Manifold HVAC System Gauge, for Air Conditioning Refrigeration System Aluminum Alloy Knob: The knob is made of excellent aluminum alloy to ensure no slipping, no cracking and easy .AMAKO HVAC Refrigerant Hoses: R134a R410a R22 R12 Charging Hose Set with Ball Valve, Color Coded Refrigeration Hoses for HVAC [VERSATILE COMPATIBILITY]: Suitable for R134A, R410A, R22, and R12 refrigerants, ensuring convenience in various scenariYDuupxe Digital HVAC Gauges, Manifold Refrigeration Set with High Precision Pressure and Temperature Measurement for Refrigerati HIGH PRECISION MEASUREMENT: 2 in 1 Function integrates pressure and temperature measurements with high accuracy, offerinGupcaqosjw Gupcaqosjw Refrigerant Leak Sniffer - Air Conditioning Refrigerant Sniffer Sensor | Quick Response Portable Auto AC Tool Advanced Leak Detection: Utilizes halogen detection technology and high-sensitivity sensors to accurately detect and locYYJKIK LM110 Digital Refrigeration Manifold Gauge Vacuum Pressure Temperature Meter Test Air-Conditioning Test Precisely The instrument has double pressure test, dual temperature test , digital readout, multi-unit switching,multi-mode functiHGFDXHB Refrigerant Manifold Gauge Set Tools with Hose and Hook for R12 R22 R404A R134A Air Condition Refrigeration 1. **Precision Measurement**: The Digital Manifold Pressur/e Gauge is designed to provide accurate and reliable readingsgeneric AC Pressure Gauge Set Home Car Refrigerant Meter Refrigeration Manifold Kit R410A R22 R134a R404A APPLICABLE MODEL: The AC pressure gauge set is suitable for common refrigerants such as R410A, R22, R134a and R404A, meeKLEIN TOOLS Klein Tools Refrigerant Gas Leak Detector Refrigerant gas leak detection of CFCs, HFCs, HCFCsCMTOOL CMTOOL Refrigerant Charging Hose 5 FT HVAC Hoses and Fittings, 1/4'' SAE Home Automotive AC Manifold Gauge Refrigeration 【Wide Range of Applications】The refrigerant hoses are compatible with R134A R12 R22 R600A R404A R502 refrigerants, etc.BELEY BELEY Refrigeration Digital Manifold HVAC System Gauge Set with Temperature Clips and Hoses 【MUST HAVE】- The intelligent electronic refrigerant group instrument is an auxiliary instrument for the installation, teZENGYL ZENGYL R410A A/C Refrigeration Manifold Gauge Set with 3 Color 1/4" SAE Fittings AC Charging Hose Fit for R410A, R134A, Fits for most other refrigerants: R410a, R404a, R134a, R22, R12 and R502.