Kit for Oval Hole - DL3F Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 8 1/8" Effective Length, 2 Oval Rubber Wheel Grommet Stablizers, & ThreadLock. Brass Stems $110.00 (+ $8.00 S/H) Kit for Oval Hole - DL3FC (Chrome Option) Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 8 1/8" Effective Length, 2 Oval Rubber Wheel Grommet Stablizers, & ThreadLock. Chrome Stems $120.00 (+ $8.00 S/H) SC1046 Double Seal Cap - Eliminates Need for valve caps on truck and motorhome valve stems, effectively reducing tire servicing time on fleet service operations. Rubber washer seals at valve mouth and an O'ring seals at extension mouth. Threads allow use of clip-on chucks. 3/4 effective length. $2.50 Each Kit for Oval Hole 16" & 19.5" wheels - DL1F Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 7 1/8 Effective Length, 2 Oval Rubber Wheel Grommet Stablizers, & ThreadLock. $110.00 (+ $8.00 S/H) Kit for Oval Hole 16" & 19.5" wheels - DL1FC (Chrome Option) Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 7 1/8 Effective Length, 2 Oval Rubber Wheel Grommet Stablizers, & ThreadLock. Chrome Stems. $120.00 (+ $8.00 S/H) Note: 7 1/8 effective length for the inner valve may not be long enough for motorhomes. If you have a motorhome, we suggest the DL3F above.