CATEGORIES HOMEStems & Cartridges By TypeThermostatic Cartridges Replacement for Sigma* 18.30.194* Thermostatic Cartridge- 1" Va Item Number: P099-42573 Availability: 0 UMRP/MAP: $1,116.18 Cost: $1,116.18 Add to Cart *Special Order Only* Cannot be Returned, Refunded, or Exchanged. ALL Sales Final.