[Application Scenarios] refrigeration repair kits are suitable for refrigerators, freezers, ice machines, small household air conditioners, large commercial air conditioners, and systems. [Copper Solder] -2 Self Fluxing Phosphor Copper Brazing Alloy Welding Rods No Need for Flux 0.050" x 1/8" x 10" Industry Professional Grade Propane Soldering Torch Supply. [Refrigerator Filter Dryer]: The refrigerator filter dryer is made of copper and contains molecular sieve particles. The molecular sieve particle size is 1.6-2.5 mm, the bulk density is ≥0.85 g/ml, and the static water absorption rate is ≥20%. 5.1" long, 0.7" diameter, 1/4" in, 1/10" out. [Hvac Service Access Valve ] Air conditioner access valve Thread x OD: 1/4'' SAE x 1/4'' O.D. Length: x 4.7" stem, Tube Thickness: 0.24".The caps are made of copper, they are provided with core remover and have an inside rubber O-ring. [Copper Solder] -1*Self Fluxing Phosphor Copper Brazing Alloy Welding Rods No Need for Flux 0.050" x 1/8" x 9.6" Industry Professional Grade Propane Soldering Torch Supply.