CertainTeed Corp., with the introduction of its new 2-inch pipe, now offers a full line of KWIK-SET threaded drop pipe for submersible pumps. With KWIK-SET, contractors can assemble 20-foot joints quickly and easily by simply screwing the pipes together; separately purchased couplings no longer are needed. Its threaded belled end is extruded at Schedule 120 for added strength, yet it is designed to maintain a low-profile outside dimension. KWIK-SET also is available in 1-inch and 1 1⁄4-inch diameter sizes. CertainTeed Corp., Card No. 285