How much does this cost to the nearest dollar?

Caprock Replacement UV-C LAMP for WEDECO 1845WS AQUADA 2 & 4 BUT NOT Made by WEDECO
REPLACEMENT UV-C LAMP FOR WEDECO water treatment systems. This is a brand-new lamp that replaces the Wedeco / and others, while retaining 100% compatibility with OEM lamps selling at much higher prices but not made by Wedeco.. It measures about 525mm (about 20.67 inches). The lamp has a separate wired 4 pin connector. Its peak output is at 254nm (UV-C). The lamp is used in these and other models of equipment Wedeco UV Technologies, Inc. 1845WS Wedeco UV Technologies, Inc. AP2 Wedeco UV Technologies, Inc. Wedeco UV

Price is $42.00
Price: $42