The McAlpine T23 is a blank cap fitting designed to seal the end of a pipe or fitting, part of the BSP range. It features an internal BSP thread for screwing onto compatible pipes or fittings, and an integrated nut for a secure, watertight seal. Constructed from durable, lightweight, and corrosion-resistant plastic, it's suitable for domestic and commercial plumbing. Note: This cap is specifically for the McAlpine BSP system and may not be compatible with other systems. Always adhere to local plumbing codes and regulations for proper installation and safety. Available in 1¼", 1½", and 2" sizes.