The Competitors use a clamp to run coolant through with no options of coolant pressure. They require several seals in the clamp assembly which wear out quick and don't seal over 500 psi. Their assembly parts are more expensive and wear out quickly. You have a clamp for chips to wrap up on the Competitors and it is only available in non swiss style holders.
Streamliner uses no seals and has three different orifices to control either GPM or PSI whichever you want. More gallons per minute and less PSI or less GPM and more PSI depending on which orifice is chosen. You get all of them with the holder. You have no clamp for chips to stick to. You have a lower profile that puts the coolant more appropriately under the chip forming and it come in both inch and metric, standard and swiss and specials with Capto, Kaiser, KM, others.