High quality and works well. O-ring arrangement is superior to other designs. I wanted to have spare o-rings before every service just in case. CAUTION: There seems to be some confusion as to the correct o-ring size based on product number. The replacement parts that I bought according to the product number are the wrong size and too big. Haven't found a proper o ring replacement yet but the assemblies are a fantastic product with a heavy duty built in bracket.
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