“1221-8-W/M U-tube manometer, range 4-0-4″ w.c., 6.3 oz (178.5 g) mercury required to fill *Non-Cancelable and Non-Returnable*” has been added to your cart. View cart
475-00-FM-AV Air velocity kit, range 0-4.000″ w.c *Non-Cancelable and Non-Returnable* - 475-00-FM-AV