Dwyer Instruments HFB-5-50 1.5″FPT 5/50GPM InLine FlowMtr Dwyer Instruments, based and shipping out of Michigan City, Indiana, delivers to the end user a a qualitly and reliable low-cost product in stock since 1931. Sigma Parts will save you money off of the list price every time. Please contact us for shipping options as Dwyer has an excellent supply chain operating out of their facilties. Their markets markets include but are not limited to HVAC, chemical, food, oil and gas, and pollution control. You probably recognize their brand names such as the Magnehelic® differential pressure gages, Photohelic® pressure switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. Sigma Parts is your Dwyer solution for low costs and fast shipping.