REPLACEMENT AND ACCESSORY PARTS FOR AIR CONDITIONING AND REFRIGERATION APPLIANCES, NAMELY, ACCUMULATORS; ALKYLBENZENE REFRIGERATION LUBRICANTS; BALL VALVES; BIOCIDE/ODOR ELIMINATORS; CHECK VALVES; CLAMP-ON LINE TAPS AND VALVES; CHILLER SYSTEMS;COMPRESSORS; CONDENSATE PUMPS; CONDENSERS; CONDENSING UNITS; CORES FOR LIQUID LINE FILTER DRIERS; CRANKCASE HEATERS; CURRENT RELAYS; DATA LOGGERS; FAN COIL UNITS; FAN MOTORS; FILTERS FOR WATER PURIFICATION SYSTEMS; FLEXIBLE REFRIGERANT COUPLING; FLUID CIRCULATING PUMPS; GAS FLOW CONTROLS; HARD START KITS; HEAT EXCHANGE COIL SURFACES; HEAT EXCHANGE PLATE SURFACES; HEAT PUMP FILTER DRIERS; HVACR BOOKS AND TRAINING LITERATURE; HVACR TEACHING AIDS; HVACR TRAINING SOFTWARE; INSULATION TAPE; LIQUID FLOW CONTROLS; LIQUID LINE FILTER DRIERS; MASTICS; METERS AND DIAGNOSTIC TOOLS; MOTOR PHASE PROTECTORS; OIL PUMPS; PASTES AND ADHESIVES; POE LUBRICANT; POTENTIAL RELAYS; PRESSURE SWITCHES; REFRIGERANT PRESSURE CONTROLS; REFRIGERANT RECLAMATION AND RECYCLING MACHINES; REFRIGERATION MONITORING SYSTEMS; REFRIGERATION FLUSH SYSTEMS; RUN CAPACITORS; SEALING CORDS AND GUMS; SHUT-OFF VALVES; SIGHT GLASSES; SOLID STATE START DEVICES; SOLVENTS; START CAPACITORS; SUCTION LINE FILTER DRIERS; SUCTION LINE FILTERS; SUNISO MINERAL OILS; ACID AND OIL TEST KITS; THERMAL OVERLOADS; THERMOSTATS, TIME DELAY SWITCHES; VACUUM PUMP OIL; VACUUM PUMPS; VIBRATION ABSORBERS; WATER CONDITION AND PURIFICATION SYSTEMS; WATER SOFTENER UNITS