SUPEROD Superior Fiberglass Sucker Rods Lighter-weight fiberglass sucker rods are inherently superior in today's industry, where higher stress ratings are mandatory. SUPEROD fiberglass rods with proprietary steel end fittings make all other rods obsolete. Deep wells, high-volume loads, corrosive and other hostile downhole conditions? No problem. That's why so many of the nation's leading producers demand the brand. After all, there is only one SUPEROD!