Trapezoidal Septic TankSeptic tanks from Ace Roto-Mold, a Division of Den Hartog Industries, feature a trapezoidal, deep rib design and interior baffle system. A custom-molded gasket system locks for a watertight seal. The tank and access covers are manufactured from high-density polyethylene with UV stabilizers, while tank outlet gaskets are vulcanized rubber and access cover gaskets are extruded nitrile rubber. Tanks come with two 24-inch double-wall access covers, which interlock with the tank using three bayonet keys. Covers can be secured with nylon wire ties and do not require metal fasteners for retention. 800/342-3408; www.denhartogindustries.com.
Uni-Tee BaffleThe Uni-Tee Baffle from Bear
