Trojan cuts no corners on componentry…and that’s important when you have sandy water problems or just tough conditions…Trojan performs better when you need it. It's stainless steel body and trigger won't corrode, the trigger has a built-in playguard and features a slotted filter keeping foreign matter out of the valve. The orfice is adjustable to provide three flow rates. Wrench flats provide ease in installation of theis standard 1/2" connection valve. Designed for use with pigs 50 lbs. or more. Outstanding finisher nipple. 3/4" Bite on Water Supply Trigger.