Quick view SeaMetrics SPX Single Jet Low Flow Meters, Acrylic Cover, Polypro MSRP: $459.00 - $615.00 These versatile impeller flowmeters are availalble in 3/8”, 1/2”, 3/4”, and 1” nominal pipe sizes with female NPT threads. They employ jewel bearings to allow for very low minimum flow rates and superior life. The SPX, with a... MSRP: $459.00 - $615.00 Quick Add Add to Wish list Compare