National Hardware Steel Threaded Rods Coarse Thread 7/8"-9 x 36" Size:7/8"-9 x 36" K-37 Septic Tank Treatment is

K-37 Septic Tank Treatment is specifically designed to restore the natural balance within septic tanks by promoting the efficient and rapid breakdown of solids

Replacing a 25-watt incandescent light

Fits standard two-piece toilets

A week after application either supplement with Mosquito Dunks®

or dual thermostatic cartridge

National Hardware Steel Threaded Rods Coarse Thread 7/8"-9 x 36" Size:7/8"-9 x 36" K-37 Septic Tank Treatment isNational Hardware's 7 8" 9 x 36" Steel Threaded Rod is designed for hanging, connecting, clamping, and supporting in plumbing, heating and electrical applications and other do it yourself projects. Consists of UNC coarse threads Can be drilled, cut, heated, or shaped For interior applications Safe working load of 10,000 lbs Meets ASTM A307 Grade A