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Heavy Duty Frames & Square Hole Grates Suitable for A.A.S.H.T.O. H 20-44 Highway Loading Precast Drawings Gutter Inlet Frame and Grate Click Drawing Below for Larger, Sharper View in PDF File.  

Precast Drawings Baffle and Gas Deflector   Baffle Ready Polylok’s Baffle instantly connects to the Septic Tank with our “Baffle Ready” Polylok Pipe Seal. Click Drawing Below for Larger, Sharper View in PDF File.