5-ply blue silicone straight reducer.
These silicone couplers are made for serious pressure conditions. They have a full 5 layers of high-temperature cording and are 5-5.5 mm thick, giving these couplers a burst pressure of 290 PSI. They are made from pure silicone, giving them an operating range of -40° to 482° F. You will not find a better silicone coupler anywhere.
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This reducer is a replacement of a much higher priced rubber coupler. Not only is it less expensive but is has lasted much longer and it just the perfect unit. We actually pass sand through the hose and its super tough and dosnt wear out.