Since 1933, Seal Fast Inc. has been one of the leaders in the hose, coupling, valves and fittings industry. Located in Houston, Texas, the company is a manufacturer and wholesale distributor of valves, couplings, fittings and PVC hoses. Seal Fast Inc. services a wide range of industries including, fuel tanker, farm ranch/dairy, agriculture, construction, mining, sandblasting, marine, oilfield,...