SC827-2B - No Caulk Cast Brass Body Drain Brass body and locknut with elastomer no-caulk gasket Snap-in 430 stainless steel strainerSC827-2J - Jack Rabbit™ Jacking Bolt Shower Drain Unique design uses stainless steel "jacking bolts" and a pressure plate washer to create a seal. No need to wrench tighten the outer locknut Perfect for replacement applications when workspace is restricted Brass body, locknut and pressure plate washer with elastomer no-caulk gasketSC825-2P - Solvent Weld Shower Drain Available with brass inserts in top for machine screws or pilot holes for standard screws 430 screw-on stainless steel strainer 1-1/2" hub connection is also 2" spigot Do not use putty with plastic shower drains&