Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X-WPCH-100BAS found under Tank Base Assembly by Pentair Water Treatment Oh Company. The National Stock Number assigned to this part is 4610015900149, and the Federal Supply Class is 4610 Water Purification Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X-WPCH-100BAS.